Home / 89,616.61-123,656.46-51,369.13

Finding the Fourth Proportional to 89,616.61, 123,656.46 and 51,369.13

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Solution

The fourth proportional to 89,616.61, 123,656.46 and 51,369.13 is: 70,881.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,616.61 : 123,656.46 = 51,369.13 : x
  2. Step 2: Convert to fraction form
    89,616.61/123,656.46 = 51,369.13/x
  3. Step 3: Cross multiply
    89,616.61x = 123,656.46 × 51,369.13
  4. Step 4: Simplify right side
    89,616.61x = 6,352,124,769.08
  5. Step 5: Solve for x
    x = 6,352,124,769.08/89,616.61
  6. Step 6: Final answer
    x = 70,881.11

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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.