Home / 56,920.46-78,542.99-31,771.02

Finding the Fourth Proportional to 56,920.46, 78,542.99 and 31,771.02

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Solution

The fourth proportional to 56,920.46, 78,542.99 and 31,771.02 is: 43,839.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,920.46 : 78,542.99 = 31,771.02 : x
  2. Step 2: Convert to fraction form
    56,920.46/78,542.99 = 31,771.02/x
  3. Step 3: Cross multiply
    56,920.46x = 78,542.99 × 31,771.02
  4. Step 4: Simplify right side
    56,920.46x = 2,495,390,906.15
  5. Step 5: Solve for x
    x = 2,495,390,906.15/56,920.46
  6. Step 6: Final answer
    x = 43,839.96

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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.