Home / 57,346.94-79,111.31-40,360.61

Finding the Fourth Proportional to 57,346.94, 79,111.31 and 40,360.61

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Solution

The fourth proportional to 57,346.94, 79,111.31 and 40,360.61 is: 55,678.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,346.94 : 79,111.31 = 40,360.61 : x
  2. Step 2: Convert to fraction form
    57,346.94/79,111.31 = 40,360.61/x
  3. Step 3: Cross multiply
    57,346.94x = 79,111.31 × 40,360.61
  4. Step 4: Simplify right side
    57,346.94x = 3,192,981,028.18
  5. Step 5: Solve for x
    x = 3,192,981,028.18/57,346.94
  6. Step 6: Final answer
    x = 55,678.31

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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.