Home / 40,377.72-60,665.13-38,139.69

Finding the Fourth Proportional to 40,377.72, 60,665.13 and 38,139.69

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Solution

The fourth proportional to 40,377.72, 60,665.13 and 38,139.69 is: 57,302.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,377.72 : 60,665.13 = 38,139.69 : x
  2. Step 2: Convert to fraction form
    40,377.72/60,665.13 = 38,139.69/x
  3. Step 3: Cross multiply
    40,377.72x = 60,665.13 × 38,139.69
  4. Step 4: Simplify right side
    40,377.72x = 2,313,749,252.01
  5. Step 5: Solve for x
    x = 2,313,749,252.01/40,377.72
  6. Step 6: Final answer
    x = 57,302.62

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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.