Home / 87,869.95-121,260.51-47,583.71

Finding the Fourth Proportional to 87,869.95, 121,260.51 and 47,583.71

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Solution

The fourth proportional to 87,869.95, 121,260.51 and 47,583.71 is: 65,665.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,869.95 : 121,260.51 = 47,583.71 : x
  2. Step 2: Convert to fraction form
    87,869.95/121,260.51 = 47,583.71/x
  3. Step 3: Cross multiply
    87,869.95x = 121,260.51 × 47,583.71
  4. Step 4: Simplify right side
    87,869.95x = 5,770,024,942.29
  5. Step 5: Solve for x
    x = 5,770,024,942.29/87,869.95
  6. Step 6: Final answer
    x = 65,665.51

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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.