Home / 87,850.30-121,233.46-47,564.08

Finding the Fourth Proportional to 87,850.30, 121,233.46 and 47,564.08

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Solution

The fourth proportional to 87,850.30, 121,233.46 and 47,564.08 is: 65,638.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,850.30 : 121,233.46 = 47,564.08 : x
  2. Step 2: Convert to fraction form
    87,850.30/121,233.46 = 47,564.08/x
  3. Step 3: Cross multiply
    87,850.30x = 121,233.46 × 47,564.08
  4. Step 4: Simplify right side
    87,850.30x = 5,766,357,990.12
  5. Step 5: Solve for x
    x = 5,766,357,990.12/87,850.30
  6. Step 6: Final answer
    x = 65,638.46

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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.