Home / 66,445.12-91,691.10-37,764.03

Finding the Fourth Proportional to 66,445.12, 91,691.10 and 37,764.03

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Solution

The fourth proportional to 66,445.12, 91,691.10 and 37,764.03 is: 52,112.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,445.12 : 91,691.10 = 37,764.03 : x
  2. Step 2: Convert to fraction form
    66,445.12/91,691.10 = 37,764.03/x
  3. Step 3: Cross multiply
    66,445.12x = 91,691.10 × 37,764.03
  4. Step 4: Simplify right side
    66,445.12x = 3,462,625,451.13
  5. Step 5: Solve for x
    x = 3,462,625,451.13/66,445.12
  6. Step 6: Final answer
    x = 52,112.56

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1.5x scale

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.