Home / 89,630.16-123,727.80-63,805.44

Finding the Fourth Proportional to 89,630.16, 123,727.80 and 63,805.44

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Solution

The fourth proportional to 89,630.16, 123,727.80 and 63,805.44 is: 88,078.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,630.16 : 123,727.80 = 63,805.44 : x
  2. Step 2: Convert to fraction form
    89,630.16/123,727.80 = 63,805.44/x
  3. Step 3: Cross multiply
    89,630.16x = 123,727.80 × 63,805.44
  4. Step 4: Simplify right side
    89,630.16x = 7,894,506,719.23
  5. Step 5: Solve for x
    x = 7,894,506,719.23/89,630.16
  6. Step 6: Final answer
    x = 88,078.69

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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.