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Finding the Fourth Proportional to 98,315.49, 135,686.91 and 55,880.40

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Solution

The fourth proportional to 98,315.49, 135,686.91 and 55,880.40 is: 77,121.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,315.49 : 135,686.91 = 55,880.40 : x
  2. Step 2: Convert to fraction form
    98,315.49/135,686.91 = 55,880.40/x
  3. Step 3: Cross multiply
    98,315.49x = 135,686.91 × 55,880.40
  4. Step 4: Simplify right side
    98,315.49x = 7,582,238,127.13
  5. Step 5: Solve for x
    x = 7,582,238,127.13/98,315.49
  6. Step 6: Final answer
    x = 77,121.50

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