Home / 85,216.20-127,862.70-40,825.80

Finding the Fourth Proportional to 85,216.20, 127,862.70 and 40,825.80

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Solution

The fourth proportional to 85,216.20, 127,862.70 and 40,825.80 is: 61,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,216.20 : 127,862.70 = 40,825.80 : x
  2. Step 2: Convert to fraction form
    85,216.20/127,862.70 = 40,825.80/x
  3. Step 3: Cross multiply
    85,216.20x = 127,862.70 × 40,825.80
  4. Step 4: Simplify right side
    85,216.20x = 5,220,097,017.66
  5. Step 5: Solve for x
    x = 5,220,097,017.66/85,216.20
  6. Step 6: Final answer
    x = 61,257.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.