Home / 89,630.16-123,688.65-49,343.05

Finding the Fourth Proportional to 89,630.16, 123,688.65 and 49,343.05

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Solution

The fourth proportional to 89,630.16, 123,688.65 and 49,343.05 is: 68,092.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,630.16 : 123,688.65 = 49,343.05 : x
  2. Step 2: Convert to fraction form
    89,630.16/123,688.65 = 49,343.05/x
  3. Step 3: Cross multiply
    89,630.16x = 123,688.65 × 49,343.05
  4. Step 4: Simplify right side
    89,630.16x = 6,103,175,241.38
  5. Step 5: Solve for x
    x = 6,103,175,241.38/89,630.16
  6. Step 6: Final answer
    x = 68,092.87

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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.