Home / 71,815.17-107,722.53-19,224.66

Finding the Fourth Proportional to 71,815.17, 107,722.53 and 19,224.66

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Solution

The fourth proportional to 71,815.17, 107,722.53 and 19,224.66 is: 28,836.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,815.17 : 107,722.53 = 19,224.66 : x
  2. Step 2: Convert to fraction form
    71,815.17/107,722.53 = 19,224.66/x
  3. Step 3: Cross multiply
    71,815.17x = 107,722.53 × 19,224.66
  4. Step 4: Simplify right side
    71,815.17x = 2,070,929,013.59
  5. Step 5: Solve for x
    x = 2,070,929,013.59/71,815.17
  6. Step 6: Final answer
    x = 28,836.93

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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.