Home / 97,939.86-135,187.56-57,650.46

Finding the Fourth Proportional to 97,939.86, 135,187.56 and 57,650.46

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Solution

The fourth proportional to 97,939.86, 135,187.56 and 57,650.46 is: 79,575.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,939.86 : 135,187.56 = 57,650.46 : x
  2. Step 2: Convert to fraction form
    97,939.86/135,187.56 = 57,650.46/x
  3. Step 3: Cross multiply
    97,939.86x = 135,187.56 × 57,650.46
  4. Step 4: Simplify right side
    97,939.86x = 7,793,625,020.28
  5. Step 5: Solve for x
    x = 7,793,625,020.28/97,939.86
  6. Step 6: Final answer
    x = 79,575.62

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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.