Home / 91,888.29-126,805.37-51,603.75

Finding the Fourth Proportional to 91,888.29, 126,805.37 and 51,603.75

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Solution

The fourth proportional to 91,888.29, 126,805.37 and 51,603.75 is: 71,212.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,888.29 : 126,805.37 = 51,603.75 : x
  2. Step 2: Convert to fraction form
    91,888.29/126,805.37 = 51,603.75/x
  3. Step 3: Cross multiply
    91,888.29x = 126,805.37 × 51,603.75
  4. Step 4: Simplify right side
    91,888.29x = 6,543,632,354.12
  5. Step 5: Solve for x
    x = 6,543,632,354.12/91,888.29
  6. Step 6: Final answer
    x = 71,212.91

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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.