Home / 88,121.28-121,609.43-52,311.43

Finding the Fourth Proportional to 88,121.28, 121,609.43 and 52,311.43

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Solution

The fourth proportional to 88,121.28, 121,609.43 and 52,311.43 is: 72,191.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,121.28 : 121,609.43 = 52,311.43 : x
  2. Step 2: Convert to fraction form
    88,121.28/121,609.43 = 52,311.43/x
  3. Step 3: Cross multiply
    88,121.28x = 121,609.43 × 52,311.43
  4. Step 4: Simplify right side
    88,121.28x = 6,361,563,184.78
  5. Step 5: Solve for x
    x = 6,361,563,184.78/88,121.28
  6. Step 6: Final answer
    x = 72,191.00

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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.