Home / 66,760.88-92,140.31-38,080.60

Finding the Fourth Proportional to 66,760.88, 92,140.31 and 38,080.60

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Solution

The fourth proportional to 66,760.88, 92,140.31 and 38,080.60 is: 52,557.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,760.88 : 92,140.31 = 38,080.60 : x
  2. Step 2: Convert to fraction form
    66,760.88/92,140.31 = 38,080.60/x
  3. Step 3: Cross multiply
    66,760.88x = 92,140.31 × 38,080.60
  4. Step 4: Simplify right side
    66,760.88x = 3,508,758,153.84
  5. Step 5: Solve for x
    x = 3,508,758,153.84/66,760.88
  6. Step 6: Final answer
    x = 52,557.10

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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.