Home / 66,907.27-92,336.12-38,614.78

Finding the Fourth Proportional to 66,907.27, 92,336.12 and 38,614.78

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Solution

The fourth proportional to 66,907.27, 92,336.12 and 38,614.78 is: 53,290.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,907.27 : 92,336.12 = 38,614.78 : x
  2. Step 2: Convert to fraction form
    66,907.27/92,336.12 = 38,614.78/x
  3. Step 3: Cross multiply
    66,907.27x = 92,336.12 × 38,614.78
  4. Step 4: Simplify right side
    66,907.27x = 3,565,538,959.85
  5. Step 5: Solve for x
    x = 3,565,538,959.85/66,907.27
  6. Step 6: Final answer
    x = 53,290.76

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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.