Home / 90,419.40-124,759.62-54,602.46

Finding the Fourth Proportional to 90,419.40, 124,759.62 and 54,602.46

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Solution

The fourth proportional to 90,419.40, 124,759.62 and 54,602.46 is: 75,339.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,419.40 : 124,759.62 = 54,602.46 : x
  2. Step 2: Convert to fraction form
    90,419.40/124,759.62 = 54,602.46/x
  3. Step 3: Cross multiply
    90,419.40x = 124,759.62 × 54,602.46
  4. Step 4: Simplify right side
    90,419.40x = 6,812,182,160.67
  5. Step 5: Solve for x
    x = 6,812,182,160.67/90,419.40
  6. Step 6: Final answer
    x = 75,339.83

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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.