Home / 56,918.96-78,540.92-31,769.52

Finding the Fourth Proportional to 56,918.96, 78,540.92 and 31,769.52

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Solution

The fourth proportional to 56,918.96, 78,540.92 and 31,769.52 is: 43,837.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,918.96 : 78,540.92 = 31,769.52 : x
  2. Step 2: Convert to fraction form
    56,918.96/78,540.92 = 31,769.52/x
  3. Step 3: Cross multiply
    56,918.96x = 78,540.92 × 31,769.52
  4. Step 4: Simplify right side
    56,918.96x = 2,495,207,328.76
  5. Step 5: Solve for x
    x = 2,495,207,328.76/56,918.96
  6. Step 6: Final answer
    x = 43,837.89

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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.