Home / 72,732.17-100,370.03-42,511.47

Finding the Fourth Proportional to 72,732.17, 100,370.03 and 42,511.47

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Solution

The fourth proportional to 72,732.17, 100,370.03 and 42,511.47 is: 58,665.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,732.17 : 100,370.03 = 42,511.47 : x
  2. Step 2: Convert to fraction form
    72,732.17/100,370.03 = 42,511.47/x
  3. Step 3: Cross multiply
    72,732.17x = 100,370.03 × 42,511.47
  4. Step 4: Simplify right side
    72,732.17x = 4,266,877,306.69
  5. Step 5: Solve for x
    x = 4,266,877,306.69/72,732.17
  6. Step 6: Final answer
    x = 58,665.62

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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.