Home / 89,331.69-123,335.42-55,376.30

Finding the Fourth Proportional to 89,331.69, 123,335.42 and 55,376.30

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Solution

The fourth proportional to 89,331.69, 123,335.42 and 55,376.30 is: 76,455.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,331.69 : 123,335.42 = 55,376.30 : x
  2. Step 2: Convert to fraction form
    89,331.69/123,335.42 = 55,376.30/x
  3. Step 3: Cross multiply
    89,331.69x = 123,335.42 × 55,376.30
  4. Step 4: Simplify right side
    89,331.69x = 6,829,859,218.55
  5. Step 5: Solve for x
    x = 6,829,859,218.55/89,331.69
  6. Step 6: Final answer
    x = 76,455.05

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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.