Home / 91,918.70-126,896.18-61,862.03

Finding the Fourth Proportional to 91,918.70, 126,896.18 and 61,862.03

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Solution

The fourth proportional to 91,918.70, 126,896.18 and 61,862.03 is: 85,402.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,918.70 : 126,896.18 = 61,862.03 : x
  2. Step 2: Convert to fraction form
    91,918.70/126,896.18 = 61,862.03/x
  3. Step 3: Cross multiply
    91,918.70x = 126,896.18 × 61,862.03
  4. Step 4: Simplify right side
    91,918.70x = 7,850,054,350.25
  5. Step 5: Solve for x
    x = 7,850,054,350.25/91,918.70
  6. Step 6: Final answer
    x = 85,402.15

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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.