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Finding the Fourth Proportional to 85,749.01, 128,623.52 and 35,801.91

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Solution

The fourth proportional to 85,749.01, 128,623.52 and 35,801.91 is: 53,702.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,749.01 : 128,623.52 = 35,801.91 : x
  2. Step 2: Convert to fraction form
    85,749.01/128,623.52 = 35,801.91/x
  3. Step 3: Cross multiply
    85,749.01x = 128,623.52 × 35,801.91
  4. Step 4: Simplify right side
    85,749.01x = 4,604,967,686.92
  5. Step 5: Solve for x
    x = 4,604,967,686.92/85,749.01
  6. Step 6: Final answer
    x = 53,702.87

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