Home / 71,261.55-106,898.45-18,671.04

Finding the Fourth Proportional to 71,261.55, 106,898.45 and 18,671.04

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Solution

The fourth proportional to 71,261.55, 106,898.45 and 18,671.04 is: 28,008.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,261.55 : 106,898.45 = 18,671.04 : x
  2. Step 2: Convert to fraction form
    71,261.55/106,898.45 = 18,671.04/x
  3. Step 3: Cross multiply
    71,261.55x = 106,898.45 × 18,671.04
  4. Step 4: Simplify right side
    71,261.55x = 1,995,905,142.53
  5. Step 5: Solve for x
    x = 1,995,905,142.53/71,261.55
  6. Step 6: Final answer
    x = 28,008.16

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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.