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Finding the Fourth Proportional to 91,989.51, 137,868.84 and 39,337.08

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Solution

The fourth proportional to 91,989.51, 137,868.84 and 39,337.08 is: 58,956.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,989.51 : 137,868.84 = 39,337.08 : x
  2. Step 2: Convert to fraction form
    91,989.51/137,868.84 = 39,337.08/x
  3. Step 3: Cross multiply
    91,989.51x = 137,868.84 × 39,337.08
  4. Step 4: Simplify right side
    91,989.51x = 5,423,357,588.59
  5. Step 5: Solve for x
    x = 5,423,357,588.59/91,989.51
  6. Step 6: Final answer
    x = 58,956.26

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