Home / 45,948.20-68,987.10-28,452.20

Finding the Fourth Proportional to 45,948.20, 68,987.10 and 28,452.20

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Solution

The fourth proportional to 45,948.20, 68,987.10 and 28,452.20 is: 42,718.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,948.20 : 68,987.10 = 28,452.20 : x
  2. Step 2: Convert to fraction form
    45,948.20/68,987.10 = 28,452.20/x
  3. Step 3: Cross multiply
    45,948.20x = 68,987.10 × 28,452.20
  4. Step 4: Simplify right side
    45,948.20x = 1,962,834,766.62
  5. Step 5: Solve for x
    x = 1,962,834,766.62/45,948.20
  6. Step 6: Final answer
    x = 42,718.43

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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.