Home / 72,142.04-108,213.17-19,551.58

Finding the Fourth Proportional to 72,142.04, 108,213.17 and 19,551.58

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Solution

The fourth proportional to 72,142.04, 108,213.17 and 19,551.58 is: 29,327.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,142.04 : 108,213.17 = 19,551.58 : x
  2. Step 2: Convert to fraction form
    72,142.04/108,213.17 = 19,551.58/x
  3. Step 3: Cross multiply
    72,142.04x = 108,213.17 × 19,551.58
  4. Step 4: Simplify right side
    72,142.04x = 2,115,738,082.02
  5. Step 5: Solve for x
    x = 2,115,738,082.02/72,142.04
  6. Step 6: Final answer
    x = 29,327.39

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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.