Home / 89,910.18-124,073.64-49,623.21

Finding the Fourth Proportional to 89,910.18, 124,073.64 and 49,623.21

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Solution

The fourth proportional to 89,910.18, 124,073.64 and 49,623.21 is: 68,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,910.18 : 124,073.64 = 49,623.21 : x
  2. Step 2: Convert to fraction form
    89,910.18/124,073.64 = 49,623.21/x
  3. Step 3: Cross multiply
    89,910.18x = 124,073.64 × 49,623.21
  4. Step 4: Simplify right side
    89,910.18x = 6,156,932,293.18
  5. Step 5: Solve for x
    x = 6,156,932,293.18/89,910.18
  6. Step 6: Final answer
    x = 68,478.70

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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.