Home / 66,909.27-92,338.88-38,616.78

Finding the Fourth Proportional to 66,909.27, 92,338.88 and 38,616.78

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Solution

The fourth proportional to 66,909.27, 92,338.88 and 38,616.78 is: 53,293.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,909.27 : 92,338.88 = 38,616.78 : x
  2. Step 2: Convert to fraction form
    66,909.27/92,338.88 = 38,616.78/x
  3. Step 3: Cross multiply
    66,909.27x = 92,338.88 × 38,616.78
  4. Step 4: Simplify right side
    66,909.27x = 3,565,830,214.41
  5. Step 5: Solve for x
    x = 3,565,830,214.41/66,909.27
  6. Step 6: Final answer
    x = 53,293.52

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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.