Home / 80,933.46-121,454.73-28,343.40

Finding the Fourth Proportional to 80,933.46, 121,454.73 and 28,343.40

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Solution

The fourth proportional to 80,933.46, 121,454.73 and 28,343.40 is: 42,534.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,933.46 : 121,454.73 = 28,343.40 : x
  2. Step 2: Convert to fraction form
    80,933.46/121,454.73 = 28,343.40/x
  3. Step 3: Cross multiply
    80,933.46x = 121,454.73 × 28,343.40
  4. Step 4: Simplify right side
    80,933.46x = 3,442,439,994.28
  5. Step 5: Solve for x
    x = 3,442,439,994.28/80,933.46
  6. Step 6: Final answer
    x = 42,534.20

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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.