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Finding the Fourth Proportional to 115,780.40, 173,689.80 and 49,252.40

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Solution

The fourth proportional to 115,780.40, 173,689.80 and 49,252.40 is: 73,886.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,780.40 : 173,689.80 = 49,252.40 : x
  2. Step 2: Convert to fraction form
    115,780.40/173,689.80 = 49,252.40/x
  3. Step 3: Cross multiply
    115,780.40x = 173,689.80 × 49,252.40
  4. Step 4: Simplify right side
    115,780.40x = 8,554,639,505.52
  5. Step 5: Solve for x
    x = 8,554,639,505.52/115,780.40
  6. Step 6: Final answer
    x = 73,886.77

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