Home / 53,451.92-80,154.17-28,487.31

Finding the Fourth Proportional to 53,451.92, 80,154.17 and 28,487.31

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Solution

The fourth proportional to 53,451.92, 80,154.17 and 28,487.31 is: 42,718.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,451.92 : 80,154.17 = 28,487.31 : x
  2. Step 2: Convert to fraction form
    53,451.92/80,154.17 = 28,487.31/x
  3. Step 3: Cross multiply
    53,451.92x = 80,154.17 × 28,487.31
  4. Step 4: Simplify right side
    53,451.92x = 2,283,376,688.58
  5. Step 5: Solve for x
    x = 2,283,376,688.58/53,451.92
  6. Step 6: Final answer
    x = 42,718.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.