Home / 65,454.14-98,178.46-21,079.90

Finding the Fourth Proportional to 65,454.14, 98,178.46 and 21,079.90

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Solution

The fourth proportional to 65,454.14, 98,178.46 and 21,079.90 is: 31,618.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,454.14 : 98,178.46 = 21,079.90 : x
  2. Step 2: Convert to fraction form
    65,454.14/98,178.46 = 21,079.90/x
  3. Step 3: Cross multiply
    65,454.14x = 98,178.46 × 21,079.90
  4. Step 4: Simplify right side
    65,454.14x = 2,069,592,118.95
  5. Step 5: Solve for x
    x = 2,069,592,118.95/65,454.14
  6. Step 6: Final answer
    x = 31,618.96

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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.