Home / 89,618.62-123,669.45-49,331.55

Finding the Fourth Proportional to 89,618.62, 123,669.45 and 49,331.55

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Solution

The fourth proportional to 89,618.62, 123,669.45 and 49,331.55 is: 68,075.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,618.62 : 123,669.45 = 49,331.55 : x
  2. Step 2: Convert to fraction form
    89,618.62/123,669.45 = 49,331.55/x
  3. Step 3: Cross multiply
    89,618.62x = 123,669.45 × 49,331.55
  4. Step 4: Simplify right side
    89,618.62x = 6,100,805,656.15
  5. Step 5: Solve for x
    x = 6,100,805,656.15/89,618.62
  6. Step 6: Final answer
    x = 68,075.20

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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.