Home / 261,078.48-391,588.56-92,584.71

Finding the Fourth Proportional to 261,078.48, 391,588.56 and 92,584.71

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Solution

The fourth proportional to 261,078.48, 391,588.56 and 92,584.71 is: 138,866.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,078.48 : 391,588.56 = 92,584.71 : x
  2. Step 2: Convert to fraction form
    261,078.48/391,588.56 = 92,584.71/x
  3. Step 3: Cross multiply
    261,078.48x = 391,588.56 × 92,584.71
  4. Step 4: Simplify right side
    261,078.48x = 36,255,113,266.92
  5. Step 5: Solve for x
    x = 36,255,113,266.92/261,078.48
  6. Step 6: Final answer
    x = 138,866.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.