Home / 66,834.90-92,229.36-39,961.53

Finding the Fourth Proportional to 66,834.90, 92,229.36 and 39,961.53

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Solution

The fourth proportional to 66,834.90, 92,229.36 and 39,961.53 is: 55,145.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,834.90 : 92,229.36 = 39,961.53 : x
  2. Step 2: Convert to fraction form
    66,834.90/92,229.36 = 39,961.53/x
  3. Step 3: Cross multiply
    66,834.90x = 92,229.36 × 39,961.53
  4. Step 4: Simplify right side
    66,834.90x = 3,685,626,336.52
  5. Step 5: Solve for x
    x = 3,685,626,336.52/66,834.90
  6. Step 6: Final answer
    x = 55,145.24

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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.