Home / 90,261.24-124,565.10-49,979.46

Finding the Fourth Proportional to 90,261.24, 124,565.10 and 49,979.46

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Solution

The fourth proportional to 90,261.24, 124,565.10 and 49,979.46 is: 68,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,261.24 : 124,565.10 = 49,979.46 : x
  2. Step 2: Convert to fraction form
    90,261.24/124,565.10 = 49,979.46/x
  3. Step 3: Cross multiply
    90,261.24x = 124,565.10 × 49,979.46
  4. Step 4: Simplify right side
    90,261.24x = 6,225,696,432.85
  5. Step 5: Solve for x
    x = 6,225,696,432.85/90,261.24
  6. Step 6: Final answer
    x = 68,974.20

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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.