Home / 65,708.32-98,576.28-21,331.60

Finding the Fourth Proportional to 65,708.32, 98,576.28 and 21,331.60

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Solution

The fourth proportional to 65,708.32, 98,576.28 and 21,331.60 is: 32,001.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,708.32 : 98,576.28 = 21,331.60 : x
  2. Step 2: Convert to fraction form
    65,708.32/98,576.28 = 21,331.60/x
  3. Step 3: Cross multiply
    65,708.32x = 98,576.28 × 21,331.60
  4. Step 4: Simplify right side
    65,708.32x = 2,102,789,774.45
  5. Step 5: Solve for x
    x = 2,102,789,774.45/65,708.32
  6. Step 6: Final answer
    x = 32,001.88

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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.