Home / 87,788.23-121,146.88-47,501.11

Finding the Fourth Proportional to 87,788.23, 121,146.88 and 47,501.11

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Solution

The fourth proportional to 87,788.23, 121,146.88 and 47,501.11 is: 65,551.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,788.23 : 121,146.88 = 47,501.11 : x
  2. Step 2: Convert to fraction form
    87,788.23/121,146.88 = 47,501.11/x
  3. Step 3: Cross multiply
    87,788.23x = 121,146.88 × 47,501.11
  4. Step 4: Simplify right side
    87,788.23x = 5,754,611,273.04
  5. Step 5: Solve for x
    x = 5,754,611,273.04/87,788.23
  6. Step 6: Final answer
    x = 65,551.06

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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.