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Finding the Fourth Proportional to 91,937.60, 137,906.40 and 32,775.20

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Solution

The fourth proportional to 91,937.60, 137,906.40 and 32,775.20 is: 49,162.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,937.60 : 137,906.40 = 32,775.20 : x
  2. Step 2: Convert to fraction form
    91,937.60/137,906.40 = 32,775.20/x
  3. Step 3: Cross multiply
    91,937.60x = 137,906.40 × 32,775.20
  4. Step 4: Simplify right side
    91,937.60x = 4,519,909,841.28
  5. Step 5: Solve for x
    x = 4,519,909,841.28/91,937.60
  6. Step 6: Final answer
    x = 49,162.80

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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.