Home / 56,884.55-78,500.04-31,391.12

Finding the Fourth Proportional to 56,884.55, 78,500.04 and 31,391.12

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Solution

The fourth proportional to 56,884.55, 78,500.04 and 31,391.12 is: 43,319.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,884.55 : 78,500.04 = 31,391.12 : x
  2. Step 2: Convert to fraction form
    56,884.55/78,500.04 = 31,391.12/x
  3. Step 3: Cross multiply
    56,884.55x = 78,500.04 × 31,391.12
  4. Step 4: Simplify right side
    56,884.55x = 2,464,204,175.64
  5. Step 5: Solve for x
    x = 2,464,204,175.64/56,884.55
  6. Step 6: Final answer
    x = 43,319.39

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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.