Home / 57,345.32-79,132.70-31,849.60

Finding the Fourth Proportional to 57,345.32, 79,132.70 and 31,849.60

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Solution

The fourth proportional to 57,345.32, 79,132.70 and 31,849.60 is: 43,950.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,345.32 : 79,132.70 = 31,849.60 : x
  2. Step 2: Convert to fraction form
    57,345.32/79,132.70 = 31,849.60/x
  3. Step 3: Cross multiply
    57,345.32x = 79,132.70 × 31,849.60
  4. Step 4: Simplify right side
    57,345.32x = 2,520,344,841.92
  5. Step 5: Solve for x
    x = 2,520,344,841.92/57,345.32
  6. Step 6: Final answer
    x = 43,950.31

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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.