Home / 57,639.76-79,608.46-38,744.08

Finding the Fourth Proportional to 57,639.76, 79,608.46 and 38,744.08

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Solution

The fourth proportional to 57,639.76, 79,608.46 and 38,744.08 is: 53,510.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,639.76 : 79,608.46 = 38,744.08 : x
  2. Step 2: Convert to fraction form
    57,639.76/79,608.46 = 38,744.08/x
  3. Step 3: Cross multiply
    57,639.76x = 79,608.46 × 38,744.08
  4. Step 4: Simplify right side
    57,639.76x = 3,084,356,542.92
  5. Step 5: Solve for x
    x = 3,084,356,542.92/57,639.76
  6. Step 6: Final answer
    x = 53,510.92

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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.