Home / 48,158.19-66,435.84-31,167.90

Finding the Fourth Proportional to 48,158.19, 66,435.84 and 31,167.90

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Solution

The fourth proportional to 48,158.19, 66,435.84 and 31,167.90 is: 42,997.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,158.19 : 66,435.84 = 31,167.90 : x
  2. Step 2: Convert to fraction form
    48,158.19/66,435.84 = 31,167.90/x
  3. Step 3: Cross multiply
    48,158.19x = 66,435.84 × 31,167.90
  4. Step 4: Simplify right side
    48,158.19x = 2,070,665,617.54
  5. Step 5: Solve for x
    x = 2,070,665,617.54/48,158.19
  6. Step 6: Final answer
    x = 42,997.16

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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.