Home / 85,943.10-128,805.30-62,542.20

Finding the Fourth Proportional to 85,943.10, 128,805.30 and 62,542.20

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Solution

The fourth proportional to 85,943.10, 128,805.30 and 62,542.20 is: 93,733.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,943.10 : 128,805.30 = 62,542.20 : x
  2. Step 2: Convert to fraction form
    85,943.10/128,805.30 = 62,542.20/x
  3. Step 3: Cross multiply
    85,943.10x = 128,805.30 × 62,542.20
  4. Step 4: Simplify right side
    85,943.10x = 8,055,766,833.66
  5. Step 5: Solve for x
    x = 8,055,766,833.66/85,943.10
  6. Step 6: Final answer
    x = 93,733.72

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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.