Home / 65,627.10-98,452.80-21,255.30

Finding the Fourth Proportional to 65,627.10, 98,452.80 and 21,255.30

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Solution

The fourth proportional to 65,627.10, 98,452.80 and 21,255.30 is: 31,886.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,627.10 : 98,452.80 = 21,255.30 : x
  2. Step 2: Convert to fraction form
    65,627.10/98,452.80 = 21,255.30/x
  3. Step 3: Cross multiply
    65,627.10x = 98,452.80 × 21,255.30
  4. Step 4: Simplify right side
    65,627.10x = 2,092,643,799.84
  5. Step 5: Solve for x
    x = 2,092,643,799.84/65,627.10
  6. Step 6: Final answer
    x = 31,886.89

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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.