Home / 89,702.52-123,788.90-49,415.36

Finding the Fourth Proportional to 89,702.52, 123,788.90 and 49,415.36

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Solution

The fourth proportional to 89,702.52, 123,788.90 and 49,415.36 is: 68,192.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,702.52 : 123,788.90 = 49,415.36 : x
  2. Step 2: Convert to fraction form
    89,702.52/123,788.90 = 49,415.36/x
  3. Step 3: Cross multiply
    89,702.52x = 123,788.90 × 49,415.36
  4. Step 4: Simplify right side
    89,702.52x = 6,117,072,191.48
  5. Step 5: Solve for x
    x = 6,117,072,191.48/89,702.52
  6. Step 6: Final answer
    x = 68,192.87

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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.