Home / 56,913.75-78,542.60-31,764.87

Finding the Fourth Proportional to 56,913.75, 78,542.60 and 31,764.87

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Solution

The fourth proportional to 56,913.75, 78,542.60 and 31,764.87 is: 43,836.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,913.75 : 78,542.60 = 31,764.87 : x
  2. Step 2: Convert to fraction form
    56,913.75/78,542.60 = 31,764.87/x
  3. Step 3: Cross multiply
    56,913.75x = 78,542.60 × 31,764.87
  4. Step 4: Simplify right side
    56,913.75x = 2,494,895,319.64
  5. Step 5: Solve for x
    x = 2,494,895,319.64/56,913.75
  6. Step 6: Final answer
    x = 43,836.42

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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.