Home / 87,895.28-121,215.76-57,669.11

Finding the Fourth Proportional to 87,895.28, 121,215.76 and 57,669.11

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Solution

The fourth proportional to 87,895.28, 121,215.76 and 57,669.11 is: 79,531.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,895.28 : 121,215.76 = 57,669.11 : x
  2. Step 2: Convert to fraction form
    87,895.28/121,215.76 = 57,669.11/x
  3. Step 3: Cross multiply
    87,895.28x = 121,215.76 × 57,669.11
  4. Step 4: Simplify right side
    87,895.28x = 6,990,405,383.32
  5. Step 5: Solve for x
    x = 6,990,405,383.32/87,895.28
  6. Step 6: Final answer
    x = 79,531.07

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