Home / 90,132.60-124,384.91-49,849.14

Finding the Fourth Proportional to 90,132.60, 124,384.91 and 49,849.14

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Solution

The fourth proportional to 90,132.60, 124,384.91 and 49,849.14 is: 68,792.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,132.60 : 124,384.91 = 49,849.14 : x
  2. Step 2: Convert to fraction form
    90,132.60/124,384.91 = 49,849.14/x
  3. Step 3: Cross multiply
    90,132.60x = 124,384.91 × 49,849.14
  4. Step 4: Simplify right side
    90,132.60x = 6,200,480,792.48
  5. Step 5: Solve for x
    x = 6,200,480,792.48/90,132.60
  6. Step 6: Final answer
    x = 68,792.88

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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.