Home / 97,920.50-135,141.14-57,644.19

Finding the Fourth Proportional to 97,920.50, 135,141.14 and 57,644.19

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Solution

The fourth proportional to 97,920.50, 135,141.14 and 57,644.19 is: 79,555.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,920.50 : 135,141.14 = 57,644.19 : x
  2. Step 2: Convert to fraction form
    97,920.50/135,141.14 = 57,644.19/x
  3. Step 3: Cross multiply
    97,920.50x = 135,141.14 × 57,644.19
  4. Step 4: Simplify right side
    97,920.50x = 7,790,101,695.09
  5. Step 5: Solve for x
    x = 7,790,101,695.09/97,920.50
  6. Step 6: Final answer
    x = 79,555.37

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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.