Home / 90,132.28-124,380.30-49,848.28

Finding the Fourth Proportional to 90,132.28, 124,380.30 and 49,848.28

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Solution

The fourth proportional to 90,132.28, 124,380.30 and 49,848.28 is: 68,789.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,132.28 : 124,380.30 = 49,848.28 : x
  2. Step 2: Convert to fraction form
    90,132.28/124,380.30 = 49,848.28/x
  3. Step 3: Cross multiply
    90,132.28x = 124,380.30 × 49,848.28
  4. Step 4: Simplify right side
    90,132.28x = 6,200,144,020.88
  5. Step 5: Solve for x
    x = 6,200,144,020.88/90,132.28
  6. Step 6: Final answer
    x = 68,789.38

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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.