Home / 57,143.20-78,866.96-34,171.52

Finding the Fourth Proportional to 57,143.20, 78,866.96 and 34,171.52

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Solution

The fourth proportional to 57,143.20, 78,866.96 and 34,171.52 is: 47,162.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,143.20 : 78,866.96 = 34,171.52 : x
  2. Step 2: Convert to fraction form
    57,143.20/78,866.96 = 34,171.52/x
  3. Step 3: Cross multiply
    57,143.20x = 78,866.96 × 34,171.52
  4. Step 4: Simplify right side
    57,143.20x = 2,695,003,900.98
  5. Step 5: Solve for x
    x = 2,695,003,900.98/57,143.20
  6. Step 6: Final answer
    x = 47,162.29

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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.