Home / 89,220.80-133,831.20-39,938.24

Finding the Fourth Proportional to 89,220.80, 133,831.20 and 39,938.24

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Solution

The fourth proportional to 89,220.80, 133,831.20 and 39,938.24 is: 59,907.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,220.80 : 133,831.20 = 39,938.24 : x
  2. Step 2: Convert to fraction form
    89,220.80/133,831.20 = 39,938.24/x
  3. Step 3: Cross multiply
    89,220.80x = 133,831.20 × 39,938.24
  4. Step 4: Simplify right side
    89,220.80x = 5,344,982,585.09
  5. Step 5: Solve for x
    x = 5,344,982,585.09/89,220.80
  6. Step 6: Final answer
    x = 59,907.36

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Similar ratio
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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.