Home / 45,814.44-68,679.37-31,781.08

Finding the Fourth Proportional to 45,814.44, 68,679.37 and 31,781.08

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Solution

The fourth proportional to 45,814.44, 68,679.37 and 31,781.08 is: 47,642.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,814.44 : 68,679.37 = 31,781.08 : x
  2. Step 2: Convert to fraction form
    45,814.44/68,679.37 = 31,781.08/x
  3. Step 3: Cross multiply
    45,814.44x = 68,679.37 × 31,781.08
  4. Step 4: Simplify right side
    45,814.44x = 2,182,704,781.67
  5. Step 5: Solve for x
    x = 2,182,704,781.67/45,814.44
  6. Step 6: Final answer
    x = 47,642.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.