Home / 56,761.62-78,327.99-31,609.50

Finding the Fourth Proportional to 56,761.62, 78,327.99 and 31,609.50

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Solution

The fourth proportional to 56,761.62, 78,327.99 and 31,609.50 is: 43,619.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,761.62 : 78,327.99 = 31,609.50 : x
  2. Step 2: Convert to fraction form
    56,761.62/78,327.99 = 31,609.50/x
  3. Step 3: Cross multiply
    56,761.62x = 78,327.99 × 31,609.50
  4. Step 4: Simplify right side
    56,761.62x = 2,475,908,599.91
  5. Step 5: Solve for x
    x = 2,475,908,599.91/56,761.62
  6. Step 6: Final answer
    x = 43,619.41

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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.