Home / 67,088.76-100,617.56-19,691.12

Finding the Fourth Proportional to 67,088.76, 100,617.56 and 19,691.12

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Solution

The fourth proportional to 67,088.76, 100,617.56 and 19,691.12 is: 29,532.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,088.76 : 100,617.56 = 19,691.12 : x
  2. Step 2: Convert to fraction form
    67,088.76/100,617.56 = 19,691.12/x
  3. Step 3: Cross multiply
    67,088.76x = 100,617.56 × 19,691.12
  4. Step 4: Simplify right side
    67,088.76x = 1,981,272,647.87
  5. Step 5: Solve for x
    x = 1,981,272,647.87/67,088.76
  6. Step 6: Final answer
    x = 29,532.11

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1.5x scale

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.