Home / 89,443.04-123,434.35-49,158.23

Finding the Fourth Proportional to 89,443.04, 123,434.35 and 49,158.23

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Solution

The fourth proportional to 89,443.04, 123,434.35 and 49,158.23 is: 67,839.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,443.04 : 123,434.35 = 49,158.23 : x
  2. Step 2: Convert to fraction form
    89,443.04/123,434.35 = 49,158.23/x
  3. Step 3: Cross multiply
    89,443.04x = 123,434.35 × 49,158.23
  4. Step 4: Simplify right side
    89,443.04x = 6,067,813,427.13
  5. Step 5: Solve for x
    x = 6,067,813,427.13/89,443.04
  6. Step 6: Final answer
    x = 67,839.98

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Double scale
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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.