Home / 90,539.61-124,938.75-50,251.42

Finding the Fourth Proportional to 90,539.61, 124,938.75 and 50,251.42

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Solution

The fourth proportional to 90,539.61, 124,938.75 and 50,251.42 is: 69,343.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,539.61 : 124,938.75 = 50,251.42 : x
  2. Step 2: Convert to fraction form
    90,539.61/124,938.75 = 50,251.42/x
  3. Step 3: Cross multiply
    90,539.61x = 124,938.75 × 50,251.42
  4. Step 4: Simplify right side
    90,539.61x = 6,278,349,600.53
  5. Step 5: Solve for x
    x = 6,278,349,600.53/90,539.61
  6. Step 6: Final answer
    x = 69,343.68

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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.