Home / 89,445.76-123,383.75-55,853.44

Finding the Fourth Proportional to 89,445.76, 123,383.75 and 55,853.44

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Solution

The fourth proportional to 89,445.76, 123,383.75 and 55,853.44 is: 77,045.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,445.76 : 123,383.75 = 55,853.44 : x
  2. Step 2: Convert to fraction form
    89,445.76/123,383.75 = 55,853.44/x
  3. Step 3: Cross multiply
    89,445.76x = 123,383.75 × 55,853.44
  4. Step 4: Simplify right side
    89,445.76x = 6,891,406,446.96
  5. Step 5: Solve for x
    x = 6,891,406,446.96/89,445.76
  6. Step 6: Final answer
    x = 77,045.65

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1.5x scale

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.