Home / 90,261.20-124,565.06-49,979.41

Finding the Fourth Proportional to 90,261.20, 124,565.06 and 49,979.41

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Solution

The fourth proportional to 90,261.20, 124,565.06 and 49,979.41 is: 68,974.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,261.20 : 124,565.06 = 49,979.41 : x
  2. Step 2: Convert to fraction form
    90,261.20/124,565.06 = 49,979.41/x
  3. Step 3: Cross multiply
    90,261.20x = 124,565.06 × 49,979.41
  4. Step 4: Simplify right side
    90,261.20x = 6,225,688,205.41
  5. Step 5: Solve for x
    x = 6,225,688,205.41/90,261.20
  6. Step 6: Final answer
    x = 68,974.14

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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.