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Finding the Fourth Proportional to 90,337.56, 135,589.52 and 45,996

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Solution

The fourth proportional to 90,337.56, 135,589.52 and 45,996 is: 69,036.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,337.56 : 135,589.52 = 45,996 : x
  2. Step 2: Convert to fraction form
    90,337.56/135,589.52 = 45,996/x
  3. Step 3: Cross multiply
    90,337.56x = 135,589.52 × 45,996
  4. Step 4: Simplify right side
    90,337.56x = 6,236,575,561.92
  5. Step 5: Solve for x
    x = 6,236,575,561.92/90,337.56
  6. Step 6: Final answer
    x = 69,036.35

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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.