Home / 57,233.30-78,980.45-31,739.61

Finding the Fourth Proportional to 57,233.30, 78,980.45 and 31,739.61

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Solution

The fourth proportional to 57,233.30, 78,980.45 and 31,739.61 is: 43,799.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,233.30 : 78,980.45 = 31,739.61 : x
  2. Step 2: Convert to fraction form
    57,233.30/78,980.45 = 31,739.61/x
  3. Step 3: Cross multiply
    57,233.30x = 78,980.45 × 31,739.61
  4. Step 4: Simplify right side
    57,233.30x = 2,506,808,552.37
  5. Step 5: Solve for x
    x = 2,506,808,552.37/57,233.30
  6. Step 6: Final answer
    x = 43,799.83

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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.