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Finding the Fourth Proportional to 94,750.40, 142,125.60 and 55,287.20

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Solution

The fourth proportional to 94,750.40, 142,125.60 and 55,287.20 is: 82,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,750.40 : 142,125.60 = 55,287.20 : x
  2. Step 2: Convert to fraction form
    94,750.40/142,125.60 = 55,287.20/x
  3. Step 3: Cross multiply
    94,750.40x = 142,125.60 × 55,287.20
  4. Step 4: Simplify right side
    94,750.40x = 7,857,726,472.32
  5. Step 5: Solve for x
    x = 7,857,726,472.32/94,750.40
  6. Step 6: Final answer
    x = 82,930.80

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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.