Home / 66,163.02-91,319.40-40,691.29

Finding the Fourth Proportional to 66,163.02, 91,319.40 and 40,691.29

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Solution

The fourth proportional to 66,163.02, 91,319.40 and 40,691.29 is: 56,162.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,163.02 : 91,319.40 = 40,691.29 : x
  2. Step 2: Convert to fraction form
    66,163.02/91,319.40 = 40,691.29/x
  3. Step 3: Cross multiply
    66,163.02x = 91,319.40 × 40,691.29
  4. Step 4: Simplify right side
    66,163.02x = 3,715,904,188.03
  5. Step 5: Solve for x
    x = 3,715,904,188.03/66,163.02
  6. Step 6: Final answer
    x = 56,162.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.