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Finding the Fourth Proportional to 98,490.18, 135,882.72 and 56,038.08

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Solution

The fourth proportional to 98,490.18, 135,882.72 and 56,038.08 is: 77,313.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,490.18 : 135,882.72 = 56,038.08 : x
  2. Step 2: Convert to fraction form
    98,490.18/135,882.72 = 56,038.08/x
  3. Step 3: Cross multiply
    98,490.18x = 135,882.72 × 56,038.08
  4. Step 4: Simplify right side
    98,490.18x = 7,614,606,733.98
  5. Step 5: Solve for x
    x = 7,614,606,733.98/98,490.18
  6. Step 6: Final answer
    x = 77,313.36

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