Home / 71,132.48-98,164.80-39,303.42

Finding the Fourth Proportional to 71,132.48, 98,164.80 and 39,303.42

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Solution

The fourth proportional to 71,132.48, 98,164.80 and 39,303.42 is: 54,239.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,132.48 : 98,164.80 = 39,303.42 : x
  2. Step 2: Convert to fraction form
    71,132.48/98,164.80 = 39,303.42/x
  3. Step 3: Cross multiply
    71,132.48x = 98,164.80 × 39,303.42
  4. Step 4: Simplify right side
    71,132.48x = 3,858,212,167.10
  5. Step 5: Solve for x
    x = 3,858,212,167.10/71,132.48
  6. Step 6: Final answer
    x = 54,239.81

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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.