Home / 52,219.85-78,330.20-14,781.15

Finding the Fourth Proportional to 52,219.85, 78,330.20 and 14,781.15

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Solution

The fourth proportional to 52,219.85, 78,330.20 and 14,781.15 is: 22,171.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,219.85 : 78,330.20 = 14,781.15 : x
  2. Step 2: Convert to fraction form
    52,219.85/78,330.20 = 14,781.15/x
  3. Step 3: Cross multiply
    52,219.85x = 78,330.20 × 14,781.15
  4. Step 4: Simplify right side
    52,219.85x = 1,157,810,361.82
  5. Step 5: Solve for x
    x = 1,157,810,361.82/52,219.85
  6. Step 6: Final answer
    x = 22,171.85

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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.