Home / 91,842.51-126,748.33-61,163

Finding the Fourth Proportional to 91,842.51, 126,748.33 and 61,163

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Solution

The fourth proportional to 91,842.51, 126,748.33 and 61,163 is: 84,408.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,842.51 : 126,748.33 = 61,163 : x
  2. Step 2: Convert to fraction form
    91,842.51/126,748.33 = 61,163/x
  3. Step 3: Cross multiply
    91,842.51x = 126,748.33 × 61,163
  4. Step 4: Simplify right side
    91,842.51x = 7,752,308,107.79
  5. Step 5: Solve for x
    x = 7,752,308,107.79/91,842.51
  6. Step 6: Final answer
    x = 84,408.71

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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.