Home / 85,029.10-127,545.75-40,660.54

Finding the Fourth Proportional to 85,029.10, 127,545.75 and 40,660.54

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Solution

The fourth proportional to 85,029.10, 127,545.75 and 40,660.54 is: 60,991.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,029.10 : 127,545.75 = 40,660.54 : x
  2. Step 2: Convert to fraction form
    85,029.10/127,545.75 = 40,660.54/x
  3. Step 3: Cross multiply
    85,029.10x = 127,545.75 × 40,660.54
  4. Step 4: Simplify right side
    85,029.10x = 5,186,079,069.71
  5. Step 5: Solve for x
    x = 5,186,079,069.71/85,029.10
  6. Step 6: Final answer
    x = 60,991.81

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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.