Home / 81,919.13-113,041.19-45,617.83

Finding the Fourth Proportional to 81,919.13, 113,041.19 and 45,617.83

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Solution

The fourth proportional to 81,919.13, 113,041.19 and 45,617.83 is: 62,948.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,919.13 : 113,041.19 = 45,617.83 : x
  2. Step 2: Convert to fraction form
    81,919.13/113,041.19 = 45,617.83/x
  3. Step 3: Cross multiply
    81,919.13x = 113,041.19 × 45,617.83
  4. Step 4: Simplify right side
    81,919.13x = 5,156,694,255.72
  5. Step 5: Solve for x
    x = 5,156,694,255.72/81,919.13
  6. Step 6: Final answer
    x = 62,948.60

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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.