Home / 71,287.14-98,375.06-39,455.36

Finding the Fourth Proportional to 71,287.14, 98,375.06 and 39,455.36

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Solution

The fourth proportional to 71,287.14, 98,375.06 and 39,455.36 is: 54,447.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,287.14 : 98,375.06 = 39,455.36 : x
  2. Step 2: Convert to fraction form
    71,287.14/98,375.06 = 39,455.36/x
  3. Step 3: Cross multiply
    71,287.14x = 98,375.06 × 39,455.36
  4. Step 4: Simplify right side
    71,287.14x = 3,881,423,014.08
  5. Step 5: Solve for x
    x = 3,881,423,014.08/71,287.14
  6. Step 6: Final answer
    x = 54,447.73

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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.