Home / 81,382.20-121,919.00-48,002.91

Finding the Fourth Proportional to 81,382.20, 121,919.00 and 48,002.91

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Solution

The fourth proportional to 81,382.20, 121,919.00 and 48,002.91 is: 71,913.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,382.20 : 121,919.00 = 48,002.91 : x
  2. Step 2: Convert to fraction form
    81,382.20/121,919.00 = 48,002.91/x
  3. Step 3: Cross multiply
    81,382.20x = 121,919.00 × 48,002.91
  4. Step 4: Simplify right side
    81,382.20x = 5,852,466,544.28
  5. Step 5: Solve for x
    x = 5,852,466,544.28/81,382.20
  6. Step 6: Final answer
    x = 71,913.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.