Home / 90,132.85-135,126.36-55,060.66

Finding the Fourth Proportional to 90,132.85, 135,126.36 and 55,060.66

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Solution

The fourth proportional to 90,132.85, 135,126.36 and 55,060.66 is: 82,546.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,132.85 : 135,126.36 = 55,060.66 : x
  2. Step 2: Convert to fraction form
    90,132.85/135,126.36 = 55,060.66/x
  3. Step 3: Cross multiply
    90,132.85x = 135,126.36 × 55,060.66
  4. Step 4: Simplify right side
    90,132.85x = 7,440,146,565.00
  5. Step 5: Solve for x
    x = 7,440,146,565.00/90,132.85
  6. Step 6: Final answer
    x = 82,546.45

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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.