Home / 89,538.03-123,499.20-76,016.25

Finding the Fourth Proportional to 89,538.03, 123,499.20 and 76,016.25

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Solution

The fourth proportional to 89,538.03, 123,499.20 and 76,016.25 is: 104,848.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,538.03 : 123,499.20 = 76,016.25 : x
  2. Step 2: Convert to fraction form
    89,538.03/123,499.20 = 76,016.25/x
  3. Step 3: Cross multiply
    89,538.03x = 123,499.20 × 76,016.25
  4. Step 4: Simplify right side
    89,538.03x = 9,387,946,062
  5. Step 5: Solve for x
    x = 9,387,946,062/89,538.03
  6. Step 6: Final answer
    x = 104,848.70

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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.