Home / 91,901.20-137,778.90-50,348.20

Finding the Fourth Proportional to 91,901.20, 137,778.90 and 50,348.20

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Solution

The fourth proportional to 91,901.20, 137,778.90 and 50,348.20 is: 75,482.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,901.20 : 137,778.90 = 50,348.20 : x
  2. Step 2: Convert to fraction form
    91,901.20/137,778.90 = 50,348.20/x
  3. Step 3: Cross multiply
    91,901.20x = 137,778.90 × 50,348.20
  4. Step 4: Simplify right side
    91,901.20x = 6,936,919,612.98
  5. Step 5: Solve for x
    x = 6,936,919,612.98/91,901.20
  6. Step 6: Final answer
    x = 75,482.36

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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.