Home / 87,809.54-121,147.29-49,564.58

Finding the Fourth Proportional to 87,809.54, 121,147.29 and 49,564.58

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Solution

The fourth proportional to 87,809.54, 121,147.29 and 49,564.58 is: 68,382.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,809.54 : 121,147.29 = 49,564.58 : x
  2. Step 2: Convert to fraction form
    87,809.54/121,147.29 = 49,564.58/x
  3. Step 3: Cross multiply
    87,809.54x = 121,147.29 × 49,564.58
  4. Step 4: Simplify right side
    87,809.54x = 6,004,613,941.25
  5. Step 5: Solve for x
    x = 6,004,613,941.25/87,809.54
  6. Step 6: Final answer
    x = 68,382.25

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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.