Home / 44,116.80-66,138-19,138.04

Finding the Fourth Proportional to 44,116.80, 66,138 and 19,138.04

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Solution

The fourth proportional to 44,116.80, 66,138 and 19,138.04 is: 28,690.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,116.80 : 66,138 = 19,138.04 : x
  2. Step 2: Convert to fraction form
    44,116.80/66,138 = 19,138.04/x
  3. Step 3: Cross multiply
    44,116.80x = 66,138 × 19,138.04
  4. Step 4: Simplify right side
    44,116.80x = 1,265,751,689.52
  5. Step 5: Solve for x
    x = 1,265,751,689.52/44,116.80
  6. Step 6: Final answer
    x = 28,690.92

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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.