Home / 87,915.15-121,322.75-47,629.91

Finding the Fourth Proportional to 87,915.15, 121,322.75 and 47,629.91

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Solution

The fourth proportional to 87,915.15, 121,322.75 and 47,629.91 is: 65,729.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,915.15 : 121,322.75 = 47,629.91 : x
  2. Step 2: Convert to fraction form
    87,915.15/121,322.75 = 47,629.91/x
  3. Step 3: Cross multiply
    87,915.15x = 121,322.75 × 47,629.91
  4. Step 4: Simplify right side
    87,915.15x = 5,778,591,728.61
  5. Step 5: Solve for x
    x = 5,778,591,728.61/87,915.15
  6. Step 6: Final answer
    x = 65,729.19

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