Home / 89,979.19-124,171.28-52,255.87

Finding the Fourth Proportional to 89,979.19, 124,171.28 and 52,255.87

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Solution

The fourth proportional to 89,979.19, 124,171.28 and 52,255.87 is: 72,113.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,979.19 : 124,171.28 = 52,255.87 : x
  2. Step 2: Convert to fraction form
    89,979.19/124,171.28 = 52,255.87/x
  3. Step 3: Cross multiply
    89,979.19x = 124,171.28 × 52,255.87
  4. Step 4: Simplify right side
    89,979.19x = 6,488,677,889.67
  5. Step 5: Solve for x
    x = 6,488,677,889.67/89,979.19
  6. Step 6: Final answer
    x = 72,113.10

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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.