Home / 89,724.27-123,818.90-49,437.12

Finding the Fourth Proportional to 89,724.27, 123,818.90 and 49,437.12

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Solution

The fourth proportional to 89,724.27, 123,818.90 and 49,437.12 is: 68,222.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,724.27 : 123,818.90 = 49,437.12 : x
  2. Step 2: Convert to fraction form
    89,724.27/123,818.90 = 49,437.12/x
  3. Step 3: Cross multiply
    89,724.27x = 123,818.90 × 49,437.12
  4. Step 4: Simplify right side
    89,724.27x = 6,121,249,570.38
  5. Step 5: Solve for x
    x = 6,121,249,570.38/89,724.27
  6. Step 6: Final answer
    x = 68,222.90

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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.