Home / 89,631.16-123,729.18-63,806.44

Finding the Fourth Proportional to 89,631.16, 123,729.18 and 63,806.44

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Solution

The fourth proportional to 89,631.16, 123,729.18 and 63,806.44 is: 88,080.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,631.16 : 123,729.18 = 63,806.44 : x
  2. Step 2: Convert to fraction form
    89,631.16/123,729.18 = 63,806.44/x
  3. Step 3: Cross multiply
    89,631.16x = 123,729.18 × 63,806.44
  4. Step 4: Simplify right side
    89,631.16x = 7,894,718,499.92
  5. Step 5: Solve for x
    x = 7,894,718,499.92/89,631.16
  6. Step 6: Final answer
    x = 88,080.07

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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.