Home / 66,132.20-91,263.10-35,918.12

Finding the Fourth Proportional to 66,132.20, 91,263.10 and 35,918.12

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Solution

The fourth proportional to 66,132.20, 91,263.10 and 35,918.12 is: 49,567.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,132.20 : 91,263.10 = 35,918.12 : x
  2. Step 2: Convert to fraction form
    66,132.20/91,263.10 = 35,918.12/x
  3. Step 3: Cross multiply
    66,132.20x = 91,263.10 × 35,918.12
  4. Step 4: Simplify right side
    66,132.20x = 3,277,998,498.61
  5. Step 5: Solve for x
    x = 3,277,998,498.61/66,132.20
  6. Step 6: Final answer
    x = 49,567.36

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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.