Home / 66,771.28-92,149.48-38,091.57

Finding the Fourth Proportional to 66,771.28, 92,149.48 and 38,091.57

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Solution

The fourth proportional to 66,771.28, 92,149.48 and 38,091.57 is: 52,569.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,771.28 : 92,149.48 = 38,091.57 : x
  2. Step 2: Convert to fraction form
    66,771.28/92,149.48 = 38,091.57/x
  3. Step 3: Cross multiply
    66,771.28x = 92,149.48 × 38,091.57
  4. Step 4: Simplify right side
    66,771.28x = 3,510,118,367.88
  5. Step 5: Solve for x
    x = 3,510,118,367.88/66,771.28
  6. Step 6: Final answer
    x = 52,569.28

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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.