Home / 90,285.28-124,627.12-54,476.80

Finding the Fourth Proportional to 90,285.28, 124,627.12 and 54,476.80

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Solution

The fourth proportional to 90,285.28, 124,627.12 and 54,476.80 is: 75,198.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,285.28 : 124,627.12 = 54,476.80 : x
  2. Step 2: Convert to fraction form
    90,285.28/124,627.12 = 54,476.80/x
  3. Step 3: Cross multiply
    90,285.28x = 124,627.12 × 54,476.80
  4. Step 4: Simplify right side
    90,285.28x = 6,789,286,690.82
  5. Step 5: Solve for x
    x = 6,789,286,690.82/90,285.28
  6. Step 6: Final answer
    x = 75,198.16

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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.