Home / 93,581.15-129,139.92-51,139.98

Finding the Fourth Proportional to 93,581.15, 129,139.92 and 51,139.98

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Solution

The fourth proportional to 93,581.15, 129,139.92 and 51,139.98 is: 70,572.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,581.15 : 129,139.92 = 51,139.98 : x
  2. Step 2: Convert to fraction form
    93,581.15/129,139.92 = 51,139.98/x
  3. Step 3: Cross multiply
    93,581.15x = 129,139.92 × 51,139.98
  4. Step 4: Simplify right side
    93,581.15x = 6,604,212,926.00
  5. Step 5: Solve for x
    x = 6,604,212,926.00/93,581.15
  6. Step 6: Final answer
    x = 70,572.05

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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.