Home / 57,050.28-78,732.15-31,556.54

Finding the Fourth Proportional to 57,050.28, 78,732.15 and 31,556.54

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Solution

The fourth proportional to 57,050.28, 78,732.15 and 31,556.54 is: 43,549.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,050.28 : 78,732.15 = 31,556.54 : x
  2. Step 2: Convert to fraction form
    57,050.28/78,732.15 = 31,556.54/x
  3. Step 3: Cross multiply
    57,050.28x = 78,732.15 × 31,556.54
  4. Step 4: Simplify right side
    57,050.28x = 2,484,513,847.10
  5. Step 5: Solve for x
    x = 2,484,513,847.10/57,050.28
  6. Step 6: Final answer
    x = 43,549.55

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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.