Home / 90,268.20-124,531.52-54,437.84

Finding the Fourth Proportional to 90,268.20, 124,531.52 and 54,437.84

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Solution

The fourth proportional to 90,268.20, 124,531.52 and 54,437.84 is: 75,100.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,268.20 : 124,531.52 = 54,437.84 : x
  2. Step 2: Convert to fraction form
    90,268.20/124,531.52 = 54,437.84/x
  3. Step 3: Cross multiply
    90,268.20x = 124,531.52 × 54,437.84
  4. Step 4: Simplify right side
    90,268.20x = 6,779,226,960.72
  5. Step 5: Solve for x
    x = 6,779,226,960.72/90,268.20
  6. Step 6: Final answer
    x = 75,100.94

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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.