Home / 65,631.46-98,456.85-21,243.46

Finding the Fourth Proportional to 65,631.46, 98,456.85 and 21,243.46

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Solution

The fourth proportional to 65,631.46, 98,456.85 and 21,243.46 is: 31,868.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,631.46 : 98,456.85 = 21,243.46 : x
  2. Step 2: Convert to fraction form
    65,631.46/98,456.85 = 21,243.46/x
  3. Step 3: Cross multiply
    65,631.46x = 98,456.85 × 21,243.46
  4. Step 4: Simplify right side
    65,631.46x = 2,091,564,154.70
  5. Step 5: Solve for x
    x = 2,091,564,154.70/65,631.46
  6. Step 6: Final answer
    x = 31,868.32

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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.