Home / 66,397.08-91,620.26-40,542.64

Finding the Fourth Proportional to 66,397.08, 91,620.26 and 40,542.64

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Solution

The fourth proportional to 66,397.08, 91,620.26 and 40,542.64 is: 55,944.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,397.08 : 91,620.26 = 40,542.64 : x
  2. Step 2: Convert to fraction form
    66,397.08/91,620.26 = 40,542.64/x
  3. Step 3: Cross multiply
    66,397.08x = 91,620.26 × 40,542.64
  4. Step 4: Simplify right side
    66,397.08x = 3,714,527,217.89
  5. Step 5: Solve for x
    x = 3,714,527,217.89/66,397.08
  6. Step 6: Final answer
    x = 55,944.14

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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.