Home / 91,500.76-137,337.81-47,158.12

Finding the Fourth Proportional to 91,500.76, 137,337.81 and 47,158.12

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Solution

The fourth proportional to 91,500.76, 137,337.81 and 47,158.12 is: 70,781.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,500.76 : 137,337.81 = 47,158.12 : x
  2. Step 2: Convert to fraction form
    91,500.76/137,337.81 = 47,158.12/x
  3. Step 3: Cross multiply
    91,500.76x = 137,337.81 × 47,158.12
  4. Step 4: Simplify right side
    91,500.76x = 6,476,592,924.52
  5. Step 5: Solve for x
    x = 6,476,592,924.52/91,500.76
  6. Step 6: Final answer
    x = 70,781.85

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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.