Home / 90,062.04-124,287.30-49,778.04

Finding the Fourth Proportional to 90,062.04, 124,287.30 and 49,778.04

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Solution

The fourth proportional to 90,062.04, 124,287.30 and 49,778.04 is: 68,694.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,062.04 : 124,287.30 = 49,778.04 : x
  2. Step 2: Convert to fraction form
    90,062.04/124,287.30 = 49,778.04/x
  3. Step 3: Cross multiply
    90,062.04x = 124,287.30 × 49,778.04
  4. Step 4: Simplify right side
    90,062.04x = 6,186,778,190.89
  5. Step 5: Solve for x
    x = 6,186,778,190.89/90,062.04
  6. Step 6: Final answer
    x = 68,694.63

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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.