Home / 56,873.48-78,486.20-31,380.96

Finding the Fourth Proportional to 56,873.48, 78,486.20 and 31,380.96

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Solution

The fourth proportional to 56,873.48, 78,486.20 and 31,380.96 is: 43,306.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,873.48 : 78,486.20 = 31,380.96 : x
  2. Step 2: Convert to fraction form
    56,873.48/78,486.20 = 31,380.96/x
  3. Step 3: Cross multiply
    56,873.48x = 78,486.20 × 31,380.96
  4. Step 4: Simplify right side
    56,873.48x = 2,462,972,302.75
  5. Step 5: Solve for x
    x = 2,462,972,302.75/56,873.48
  6. Step 6: Final answer
    x = 43,306.16

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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.