Home / 75,652.43-113,479.20-28,278.23

Finding the Fourth Proportional to 75,652.43, 113,479.20 and 28,278.23

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Solution

The fourth proportional to 75,652.43, 113,479.20 and 28,278.23 is: 42,417.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,652.43 : 113,479.20 = 28,278.23 : x
  2. Step 2: Convert to fraction form
    75,652.43/113,479.20 = 28,278.23/x
  3. Step 3: Cross multiply
    75,652.43x = 113,479.20 × 28,278.23
  4. Step 4: Simplify right side
    75,652.43x = 3,208,990,350.42
  5. Step 5: Solve for x
    x = 3,208,990,350.42/75,652.43
  6. Step 6: Final answer
    x = 42,417.55

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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.