Home / 65,915.06-98,885.31-21,529.88

Finding the Fourth Proportional to 65,915.06, 98,885.31 and 21,529.88

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Solution

The fourth proportional to 65,915.06, 98,885.31 and 21,529.88 is: 32,298.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,915.06 : 98,885.31 = 21,529.88 : x
  2. Step 2: Convert to fraction form
    65,915.06/98,885.31 = 21,529.88/x
  3. Step 3: Cross multiply
    65,915.06x = 98,885.31 × 21,529.88
  4. Step 4: Simplify right side
    65,915.06x = 2,128,988,858.06
  5. Step 5: Solve for x
    x = 2,128,988,858.06/65,915.06
  6. Step 6: Final answer
    x = 32,298.97

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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.