Home / 71,996.60-99,357.08-39,731.82

Finding the Fourth Proportional to 71,996.60, 99,357.08 and 39,731.82

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Solution

The fourth proportional to 71,996.60, 99,357.08 and 39,731.82 is: 54,830.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,996.60 : 99,357.08 = 39,731.82 : x
  2. Step 2: Convert to fraction form
    71,996.60/99,357.08 = 39,731.82/x
  3. Step 3: Cross multiply
    71,996.60x = 99,357.08 × 39,731.82
  4. Step 4: Simplify right side
    71,996.60x = 3,947,637,270.53
  5. Step 5: Solve for x
    x = 3,947,637,270.53/71,996.60
  6. Step 6: Final answer
    x = 54,830.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.