Home / 71,397.12-107,132.40-33,999.60

Finding the Fourth Proportional to 71,397.12, 107,132.40 and 33,999.60

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Solution

The fourth proportional to 71,397.12, 107,132.40 and 33,999.60 is: 51,016.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,397.12 : 107,132.40 = 33,999.60 : x
  2. Step 2: Convert to fraction form
    71,397.12/107,132.40 = 33,999.60/x
  3. Step 3: Cross multiply
    71,397.12x = 107,132.40 × 33,999.60
  4. Step 4: Simplify right side
    71,397.12x = 3,642,458,747.04
  5. Step 5: Solve for x
    x = 3,642,458,747.04/71,397.12
  6. Step 6: Final answer
    x = 51,016.89

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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.