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Finding the Fourth Proportional to 90,304.59, 124,621.26 and 54,487.71

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Solution

The fourth proportional to 90,304.59, 124,621.26 and 54,487.71 is: 75,193.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,304.59 : 124,621.26 = 54,487.71 : x
  2. Step 2: Convert to fraction form
    90,304.59/124,621.26 = 54,487.71/x
  3. Step 3: Cross multiply
    90,304.59x = 124,621.26 × 54,487.71
  4. Step 4: Simplify right side
    90,304.59x = 6,790,327,074.71
  5. Step 5: Solve for x
    x = 6,790,327,074.71/90,304.59
  6. Step 6: Final answer
    x = 75,193.60

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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.