Home / 88,165.55-121,751.46-61,381.28

Finding the Fourth Proportional to 88,165.55, 121,751.46 and 61,381.28

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Solution

The fourth proportional to 88,165.55, 121,751.46 and 61,381.28 is: 84,763.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,165.55 : 121,751.46 = 61,381.28 : x
  2. Step 2: Convert to fraction form
    88,165.55/121,751.46 = 61,381.28/x
  3. Step 3: Cross multiply
    88,165.55x = 121,751.46 × 61,381.28
  4. Step 4: Simplify right side
    88,165.55x = 7,473,260,304.48
  5. Step 5: Solve for x
    x = 7,473,260,304.48/88,165.55
  6. Step 6: Final answer
    x = 84,763.95

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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.