Home / 56,690.82-78,233.18-31,197.69

Finding the Fourth Proportional to 56,690.82, 78,233.18 and 31,197.69

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Solution

The fourth proportional to 56,690.82, 78,233.18 and 31,197.69 is: 43,052.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,690.82 : 78,233.18 = 31,197.69 : x
  2. Step 2: Convert to fraction form
    56,690.82/78,233.18 = 31,197.69/x
  3. Step 3: Cross multiply
    56,690.82x = 78,233.18 × 31,197.69
  4. Step 4: Simplify right side
    56,690.82x = 2,440,694,341.37
  5. Step 5: Solve for x
    x = 2,440,694,341.37/56,690.82
  6. Step 6: Final answer
    x = 43,052.73

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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.