Home / 66,515.92-99,697.40-29,067.28

Finding the Fourth Proportional to 66,515.92, 99,697.40 and 29,067.28

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Solution

The fourth proportional to 66,515.92, 99,697.40 and 29,067.28 is: 43,567.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,515.92 : 99,697.40 = 29,067.28 : x
  2. Step 2: Convert to fraction form
    66,515.92/99,697.40 = 29,067.28/x
  3. Step 3: Cross multiply
    66,515.92x = 99,697.40 × 29,067.28
  4. Step 4: Simplify right side
    66,515.92x = 2,897,932,241.07
  5. Step 5: Solve for x
    x = 2,897,932,241.07/66,515.92
  6. Step 6: Final answer
    x = 43,567.50

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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.