Home / 97,983.26-135,212.96-57,698.72

Finding the Fourth Proportional to 97,983.26, 135,212.96 and 57,698.72

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Solution

The fourth proportional to 97,983.26, 135,212.96 and 57,698.72 is: 79,621.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,983.26 : 135,212.96 = 57,698.72 : x
  2. Step 2: Convert to fraction form
    97,983.26/135,212.96 = 57,698.72/x
  3. Step 3: Cross multiply
    97,983.26x = 135,212.96 × 57,698.72
  4. Step 4: Simplify right side
    97,983.26x = 7,801,614,719.41
  5. Step 5: Solve for x
    x = 7,801,614,719.41/97,983.26
  6. Step 6: Final answer
    x = 79,621.91

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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.