Home / 90,654.27-125,002.04-61,978.60

Finding the Fourth Proportional to 90,654.27, 125,002.04 and 61,978.60

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Solution

The fourth proportional to 90,654.27, 125,002.04 and 61,978.60 is: 85,461.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,654.27 : 125,002.04 = 61,978.60 : x
  2. Step 2: Convert to fraction form
    90,654.27/125,002.04 = 61,978.60/x
  3. Step 3: Cross multiply
    90,654.27x = 125,002.04 × 61,978.60
  4. Step 4: Simplify right side
    90,654.27x = 7,747,451,436.34
  5. Step 5: Solve for x
    x = 7,747,451,436.34/90,654.27
  6. Step 6: Final answer
    x = 85,461.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.