Home / 61,831.80-85,331.20-39,162.52

Finding the Fourth Proportional to 61,831.80, 85,331.20 and 39,162.52

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Solution

The fourth proportional to 61,831.80, 85,331.20 and 39,162.52 is: 54,046.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,831.80 : 85,331.20 = 39,162.52 : x
  2. Step 2: Convert to fraction form
    61,831.80/85,331.20 = 39,162.52/x
  3. Step 3: Cross multiply
    61,831.80x = 85,331.20 × 39,162.52
  4. Step 4: Simplify right side
    61,831.80x = 3,341,784,826.62
  5. Step 5: Solve for x
    x = 3,341,784,826.62/61,831.80
  6. Step 6: Final answer
    x = 54,046.38

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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.