Home / 66,164.85-99,247.14-28,720.08

Finding the Fourth Proportional to 66,164.85, 99,247.14 and 28,720.08

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Solution

The fourth proportional to 66,164.85, 99,247.14 and 28,720.08 is: 43,080.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,164.85 : 99,247.14 = 28,720.08 : x
  2. Step 2: Convert to fraction form
    66,164.85/99,247.14 = 28,720.08/x
  3. Step 3: Cross multiply
    66,164.85x = 99,247.14 × 28,720.08
  4. Step 4: Simplify right side
    66,164.85x = 2,850,385,800.57
  5. Step 5: Solve for x
    x = 2,850,385,800.57/66,164.85
  6. Step 6: Final answer
    x = 43,080.06

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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.