Home / 93,738.08-129,360.78-53,455.70

Finding the Fourth Proportional to 93,738.08, 129,360.78 and 53,455.70

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Solution

The fourth proportional to 93,738.08, 129,360.78 and 53,455.70 is: 73,770.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,738.08 : 129,360.78 = 53,455.70 : x
  2. Step 2: Convert to fraction form
    93,738.08/129,360.78 = 53,455.70/x
  3. Step 3: Cross multiply
    93,738.08x = 129,360.78 × 53,455.70
  4. Step 4: Simplify right side
    93,738.08x = 6,915,071,047.45
  5. Step 5: Solve for x
    x = 6,915,071,047.45/93,738.08
  6. Step 6: Final answer
    x = 73,770.14

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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.