Home / 56,550.28-78,042.90-31,399.96

Finding the Fourth Proportional to 56,550.28, 78,042.90 and 31,399.96

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Solution

The fourth proportional to 56,550.28, 78,042.90 and 31,399.96 is: 43,333.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,550.28 : 78,042.90 = 31,399.96 : x
  2. Step 2: Convert to fraction form
    56,550.28/78,042.90 = 31,399.96/x
  3. Step 3: Cross multiply
    56,550.28x = 78,042.90 × 31,399.96
  4. Step 4: Simplify right side
    56,550.28x = 2,450,543,938.28
  5. Step 5: Solve for x
    x = 2,450,543,938.28/56,550.28
  6. Step 6: Final answer
    x = 43,333.90

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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.