Home / 66,170.28-99,199.61-28,702.15

Finding the Fourth Proportional to 66,170.28, 99,199.61 and 28,702.15

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Solution

The fourth proportional to 66,170.28, 99,199.61 and 28,702.15 is: 43,029.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,170.28 : 99,199.61 = 28,702.15 : x
  2. Step 2: Convert to fraction form
    66,170.28/99,199.61 = 28,702.15/x
  3. Step 3: Cross multiply
    66,170.28x = 99,199.61 × 28,702.15
  4. Step 4: Simplify right side
    66,170.28x = 2,847,241,446.65
  5. Step 5: Solve for x
    x = 2,847,241,446.65/66,170.28
  6. Step 6: Final answer
    x = 43,029.01

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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.