Home / 73,129.03-100,916.82-40,864.16

Finding the Fourth Proportional to 73,129.03, 100,916.82 and 40,864.16

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Solution

The fourth proportional to 73,129.03, 100,916.82 and 40,864.16 is: 56,391.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,129.03 : 100,916.82 = 40,864.16 : x
  2. Step 2: Convert to fraction form
    73,129.03/100,916.82 = 40,864.16/x
  3. Step 3: Cross multiply
    73,129.03x = 100,916.82 × 40,864.16
  4. Step 4: Simplify right side
    73,129.03x = 4,123,881,331.46
  5. Step 5: Solve for x
    x = 4,123,881,331.46/73,129.03
  6. Step 6: Final answer
    x = 56,391.85

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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.