Home / 65,180.67-89,918.01-38,321.88

Finding the Fourth Proportional to 65,180.67, 89,918.01 and 38,321.88

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Solution

The fourth proportional to 65,180.67, 89,918.01 and 38,321.88 is: 52,865.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,180.67 : 89,918.01 = 38,321.88 : x
  2. Step 2: Convert to fraction form
    65,180.67/89,918.01 = 38,321.88/x
  3. Step 3: Cross multiply
    65,180.67x = 89,918.01 × 38,321.88
  4. Step 4: Simplify right side
    65,180.67x = 3,445,827,189.06
  5. Step 5: Solve for x
    x = 3,445,827,189.06/65,180.67
  6. Step 6: Final answer
    x = 52,865.78

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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.