Home / 56,770.46-78,349.35-31,279.41

Finding the Fourth Proportional to 56,770.46, 78,349.35 and 31,279.41

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Solution

The fourth proportional to 56,770.46, 78,349.35 and 31,279.41 is: 43,168.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,770.46 : 78,349.35 = 31,279.41 : x
  2. Step 2: Convert to fraction form
    56,770.46/78,349.35 = 31,279.41/x
  3. Step 3: Cross multiply
    56,770.46x = 78,349.35 × 31,279.41
  4. Step 4: Simplify right side
    56,770.46x = 2,450,721,441.88
  5. Step 5: Solve for x
    x = 2,450,721,441.88/56,770.46
  6. Step 6: Final answer
    x = 43,168.96

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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.