Home / 56,919.96-78,542.30-31,770.52

Finding the Fourth Proportional to 56,919.96, 78,542.30 and 31,770.52

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Solution

The fourth proportional to 56,919.96, 78,542.30 and 31,770.52 is: 43,839.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,919.96 : 78,542.30 = 31,770.52 : x
  2. Step 2: Convert to fraction form
    56,919.96/78,542.30 = 31,770.52/x
  3. Step 3: Cross multiply
    56,919.96x = 78,542.30 × 31,770.52
  4. Step 4: Simplify right side
    56,919.96x = 2,495,329,713.00
  5. Step 5: Solve for x
    x = 2,495,329,713.00/56,919.96
  6. Step 6: Final answer
    x = 43,839.27

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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.