Home / 80,884.53-121,340.15-36,510.30

Finding the Fourth Proportional to 80,884.53, 121,340.15 and 36,510.30

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Solution

The fourth proportional to 80,884.53, 121,340.15 and 36,510.30 is: 54,771.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,884.53 : 121,340.15 = 36,510.30 : x
  2. Step 2: Convert to fraction form
    80,884.53/121,340.15 = 36,510.30/x
  3. Step 3: Cross multiply
    80,884.53x = 121,340.15 × 36,510.30
  4. Step 4: Simplify right side
    80,884.53x = 4,430,165,278.55
  5. Step 5: Solve for x
    x = 4,430,165,278.55/80,884.53
  6. Step 6: Final answer
    x = 54,771.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.