Home / 89,989.29-124,181.85-49,702.18

Finding the Fourth Proportional to 89,989.29, 124,181.85 and 49,702.18

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Solution

The fourth proportional to 89,989.29, 124,181.85 and 49,702.18 is: 68,587.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,989.29 : 124,181.85 = 49,702.18 : x
  2. Step 2: Convert to fraction form
    89,989.29/124,181.85 = 49,702.18/x
  3. Step 3: Cross multiply
    89,989.29x = 124,181.85 × 49,702.18
  4. Step 4: Simplify right side
    89,989.29x = 6,172,108,661.43
  5. Step 5: Solve for x
    x = 6,172,108,661.43/89,989.29
  6. Step 6: Final answer
    x = 68,587.15

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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.