Home / 91,831.80-137,747.70-29,508.60

Finding the Fourth Proportional to 91,831.80, 137,747.70 and 29,508.60

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Solution

The fourth proportional to 91,831.80, 137,747.70 and 29,508.60 is: 44,262.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,831.80 : 137,747.70 = 29,508.60 : x
  2. Step 2: Convert to fraction form
    91,831.80/137,747.70 = 29,508.60/x
  3. Step 3: Cross multiply
    91,831.80x = 137,747.70 × 29,508.60
  4. Step 4: Simplify right side
    91,831.80x = 4,064,741,780.22
  5. Step 5: Solve for x
    x = 4,064,741,780.22/91,831.80
  6. Step 6: Final answer
    x = 44,262.90

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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.