Home / 45,132.22-67,737.21-21,778.30

Finding the Fourth Proportional to 45,132.22, 67,737.21 and 21,778.30

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Solution

The fourth proportional to 45,132.22, 67,737.21 and 21,778.30 is: 32,686.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,132.22 : 67,737.21 = 21,778.30 : x
  2. Step 2: Convert to fraction form
    45,132.22/67,737.21 = 21,778.30/x
  3. Step 3: Cross multiply
    45,132.22x = 67,737.21 × 21,778.30
  4. Step 4: Simplify right side
    45,132.22x = 1,475,201,280.54
  5. Step 5: Solve for x
    x = 1,475,201,280.54/45,132.22
  6. Step 6: Final answer
    x = 32,686.21

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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.