Home / 97,839.78-135,011.25-57,555.06

Finding the Fourth Proportional to 97,839.78, 135,011.25 and 57,555.06

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Solution

The fourth proportional to 97,839.78, 135,011.25 and 57,555.06 is: 79,421.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,839.78 : 135,011.25 = 57,555.06 : x
  2. Step 2: Convert to fraction form
    97,839.78/135,011.25 = 57,555.06/x
  3. Step 3: Cross multiply
    97,839.78x = 135,011.25 × 57,555.06
  4. Step 4: Simplify right side
    97,839.78x = 7,770,580,594.43
  5. Step 5: Solve for x
    x = 7,770,580,594.43/97,839.78
  6. Step 6: Final answer
    x = 79,421.48

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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.