Home / 80,153.28-110,597.40-54,680.40

Finding the Fourth Proportional to 80,153.28, 110,597.40 and 54,680.40

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Solution

The fourth proportional to 80,153.28, 110,597.40 and 54,680.40 is: 75,449.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,153.28 : 110,597.40 = 54,680.40 : x
  2. Step 2: Convert to fraction form
    80,153.28/110,597.40 = 54,680.40/x
  3. Step 3: Cross multiply
    80,153.28x = 110,597.40 × 54,680.40
  4. Step 4: Simplify right side
    80,153.28x = 6,047,510,070.96
  5. Step 5: Solve for x
    x = 6,047,510,070.96/80,153.28
  6. Step 6: Final answer
    x = 75,449.31

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1.5x scale

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.