Home / 85,044.65-117,377.87-56,313.64

Finding the Fourth Proportional to 85,044.65, 117,377.87 and 56,313.64

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Solution

The fourth proportional to 85,044.65, 117,377.87 and 56,313.64 is: 77,723.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,044.65 : 117,377.87 = 56,313.64 : x
  2. Step 2: Convert to fraction form
    85,044.65/117,377.87 = 56,313.64/x
  3. Step 3: Cross multiply
    85,044.65x = 117,377.87 × 56,313.64
  4. Step 4: Simplify right side
    85,044.65x = 6,609,975,115.15
  5. Step 5: Solve for x
    x = 6,609,975,115.15/85,044.65
  6. Step 6: Final answer
    x = 77,723.59

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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.