Home / 88,178.28-121,687.29-47,892.12

Finding the Fourth Proportional to 88,178.28, 121,687.29 and 47,892.12

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Solution

The fourth proportional to 88,178.28, 121,687.29 and 47,892.12 is: 66,091.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,178.28 : 121,687.29 = 47,892.12 : x
  2. Step 2: Convert to fraction form
    88,178.28/121,687.29 = 47,892.12/x
  3. Step 3: Cross multiply
    88,178.28x = 121,687.29 × 47,892.12
  4. Step 4: Simplify right side
    88,178.28x = 5,827,862,295.15
  5. Step 5: Solve for x
    x = 5,827,862,295.15/88,178.28
  6. Step 6: Final answer
    x = 66,091.81

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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.