Home / 89,983.80-124,176.60-49,147.72

Finding the Fourth Proportional to 89,983.80, 124,176.60 and 49,147.72

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Solution

The fourth proportional to 89,983.80, 124,176.60 and 49,147.72 is: 67,823.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,983.80 : 124,176.60 = 49,147.72 : x
  2. Step 2: Convert to fraction form
    89,983.80/124,176.60 = 49,147.72/x
  3. Step 3: Cross multiply
    89,983.80x = 124,176.60 × 49,147.72
  4. Step 4: Simplify right side
    89,983.80x = 6,102,996,456.91
  5. Step 5: Solve for x
    x = 6,102,996,456.91/89,983.80
  6. Step 6: Final answer
    x = 67,823.28

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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.