Home / 87,788.73-121,147.58-47,501.61

Finding the Fourth Proportional to 87,788.73, 121,147.58 and 47,501.61

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Solution

The fourth proportional to 87,788.73, 121,147.58 and 47,501.61 is: 65,551.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,788.73 : 121,147.58 = 47,501.61 : x
  2. Step 2: Convert to fraction form
    87,788.73/121,147.58 = 47,501.61/x
  3. Step 3: Cross multiply
    87,788.73x = 121,147.58 × 47,501.61
  4. Step 4: Simplify right side
    87,788.73x = 5,754,704,860.10
  5. Step 5: Solve for x
    x = 5,754,704,860.10/87,788.73
  6. Step 6: Final answer
    x = 65,551.75

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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.