Home / 52,685.30-79,028.02-21,520.55

Finding the Fourth Proportional to 52,685.30, 79,028.02 and 21,520.55

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Solution

The fourth proportional to 52,685.30, 79,028.02 and 21,520.55 is: 32,280.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,685.30 : 79,028.02 = 21,520.55 : x
  2. Step 2: Convert to fraction form
    52,685.30/79,028.02 = 21,520.55/x
  3. Step 3: Cross multiply
    52,685.30x = 79,028.02 × 21,520.55
  4. Step 4: Simplify right side
    52,685.30x = 1,700,726,680.28
  5. Step 5: Solve for x
    x = 1,700,726,680.28/52,685.30
  6. Step 6: Final answer
    x = 32,280.86

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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.