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Finding the Fourth Proportional to 75,513.60, 104,227.20 and 45,715.20

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Solution

The fourth proportional to 75,513.60, 104,227.20 and 45,715.20 is: 63,098.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,513.60 : 104,227.20 = 45,715.20 : x
  2. Step 2: Convert to fraction form
    75,513.60/104,227.20 = 45,715.20/x
  3. Step 3: Cross multiply
    75,513.60x = 104,227.20 × 45,715.20
  4. Step 4: Simplify right side
    75,513.60x = 4,764,767,293.44
  5. Step 5: Solve for x
    x = 4,764,767,293.44/75,513.60
  6. Step 6: Final answer
    x = 63,098.13

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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.