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Finding the Fourth Proportional to 210,621.72, 315,952.38 and 77,504.52

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Solution

The fourth proportional to 210,621.72, 315,952.38 and 77,504.52 is: 116,264.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,621.72 : 315,952.38 = 77,504.52 : x
  2. Step 2: Convert to fraction form
    210,621.72/315,952.38 = 77,504.52/x
  3. Step 3: Cross multiply
    210,621.72x = 315,952.38 × 77,504.52
  4. Step 4: Simplify right side
    210,621.72x = 24,487,737,554.76
  5. Step 5: Solve for x
    x = 24,487,737,554.76/210,621.72
  6. Step 6: Final answer
    x = 116,264.07

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