Home / 66,986.16-92,442.84-38,310.60

Finding the Fourth Proportional to 66,986.16, 92,442.84 and 38,310.60

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Solution

The fourth proportional to 66,986.16, 92,442.84 and 38,310.60 is: 52,869.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,986.16 : 92,442.84 = 38,310.60 : x
  2. Step 2: Convert to fraction form
    66,986.16/92,442.84 = 38,310.60/x
  3. Step 3: Cross multiply
    66,986.16x = 92,442.84 × 38,310.60
  4. Step 4: Simplify right side
    66,986.16x = 3,541,540,666.10
  5. Step 5: Solve for x
    x = 3,541,540,666.10/66,986.16
  6. Step 6: Final answer
    x = 52,869.74

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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.