Home / 90,485.52-124,864.38-54,654.36

Finding the Fourth Proportional to 90,485.52, 124,864.38 and 54,654.36

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Solution

The fourth proportional to 90,485.52, 124,864.38 and 54,654.36 is: 75,419.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,485.52 : 124,864.38 = 54,654.36 : x
  2. Step 2: Convert to fraction form
    90,485.52/124,864.38 = 54,654.36/x
  3. Step 3: Cross multiply
    90,485.52x = 124,864.38 × 54,654.36
  4. Step 4: Simplify right side
    90,485.52x = 6,824,382,775.70
  5. Step 5: Solve for x
    x = 6,824,382,775.70/90,485.52
  6. Step 6: Final answer
    x = 75,419.61

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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.