Home / 85,690.20-118,251.18-47,965.80

Finding the Fourth Proportional to 85,690.20, 118,251.18 and 47,965.80

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Solution

The fourth proportional to 85,690.20, 118,251.18 and 47,965.80 is: 66,192.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,690.20 : 118,251.18 = 47,965.80 : x
  2. Step 2: Convert to fraction form
    85,690.20/118,251.18 = 47,965.80/x
  3. Step 3: Cross multiply
    85,690.20x = 118,251.18 × 47,965.80
  4. Step 4: Simplify right side
    85,690.20x = 5,672,012,449.64
  5. Step 5: Solve for x
    x = 5,672,012,449.64/85,690.20
  6. Step 6: Final answer
    x = 66,192.08

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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.