Home / 66,062.20-91,189.49-39,204.70

Finding the Fourth Proportional to 66,062.20, 91,189.49 and 39,204.70

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Solution

The fourth proportional to 66,062.20, 91,189.49 and 39,204.70 is: 54,116.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,062.20 : 91,189.49 = 39,204.70 : x
  2. Step 2: Convert to fraction form
    66,062.20/91,189.49 = 39,204.70/x
  3. Step 3: Cross multiply
    66,062.20x = 91,189.49 × 39,204.70
  4. Step 4: Simplify right side
    66,062.20x = 3,575,056,598.60
  5. Step 5: Solve for x
    x = 3,575,056,598.60/66,062.20
  6. Step 6: Final answer
    x = 54,116.52

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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.