Home / 65,545.32-90,463.38-38,694.36

Finding the Fourth Proportional to 65,545.32, 90,463.38 and 38,694.36

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Solution

The fourth proportional to 65,545.32, 90,463.38 and 38,694.36 is: 53,404.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,545.32 : 90,463.38 = 38,694.36 : x
  2. Step 2: Convert to fraction form
    65,545.32/90,463.38 = 38,694.36/x
  3. Step 3: Cross multiply
    65,545.32x = 90,463.38 × 38,694.36
  4. Step 4: Simplify right side
    65,545.32x = 3,500,422,592.54
  5. Step 5: Solve for x
    x = 3,500,422,592.54/65,545.32
  6. Step 6: Final answer
    x = 53,404.62

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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.