Home / 93,577.38-129,139.47-51,138.60

Finding the Fourth Proportional to 93,577.38, 129,139.47 and 51,138.60

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Solution

The fourth proportional to 93,577.38, 129,139.47 and 51,138.60 is: 70,572.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,577.38 : 129,139.47 = 51,138.60 : x
  2. Step 2: Convert to fraction form
    93,577.38/129,139.47 = 51,138.60/x
  3. Step 3: Cross multiply
    93,577.38x = 129,139.47 × 51,138.60
  4. Step 4: Simplify right side
    93,577.38x = 6,604,011,700.54
  5. Step 5: Solve for x
    x = 6,604,011,700.54/93,577.38
  6. Step 6: Final answer
    x = 70,572.74

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.