Home / 56,733.28-78,288.86-31,234.68

Finding the Fourth Proportional to 56,733.28, 78,288.86 and 31,234.68

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Solution

The fourth proportional to 56,733.28, 78,288.86 and 31,234.68 is: 43,102.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,733.28 : 78,288.86 = 31,234.68 : x
  2. Step 2: Convert to fraction form
    56,733.28/78,288.86 = 31,234.68/x
  3. Step 3: Cross multiply
    56,733.28x = 78,288.86 × 31,234.68
  4. Step 4: Simplify right side
    56,733.28x = 2,445,327,489.66
  5. Step 5: Solve for x
    x = 2,445,327,489.66/56,733.28
  6. Step 6: Final answer
    x = 43,102.17

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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.