Home / 81,252.50-112,141.41-47,712.02

Finding the Fourth Proportional to 81,252.50, 112,141.41 and 47,712.02

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Solution

The fourth proportional to 81,252.50, 112,141.41 and 47,712.02 is: 65,850.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,252.50 : 112,141.41 = 47,712.02 : x
  2. Step 2: Convert to fraction form
    81,252.50/112,141.41 = 47,712.02/x
  3. Step 3: Cross multiply
    81,252.50x = 112,141.41 × 47,712.02
  4. Step 4: Simplify right side
    81,252.50x = 5,350,493,196.75
  5. Step 5: Solve for x
    x = 5,350,493,196.75/81,252.50
  6. Step 6: Final answer
    x = 65,850.20

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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.