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Finding the Fourth Proportional to 64,542.12, 89,075.28 and 37,691.28

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Solution

The fourth proportional to 64,542.12, 89,075.28 and 37,691.28 is: 52,018.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,542.12 : 89,075.28 = 37,691.28 : x
  2. Step 2: Convert to fraction form
    64,542.12/89,075.28 = 37,691.28/x
  3. Step 3: Cross multiply
    64,542.12x = 89,075.28 × 37,691.28
  4. Step 4: Simplify right side
    64,542.12x = 3,357,361,319.56
  5. Step 5: Solve for x
    x = 3,357,361,319.56/64,542.12
  6. Step 6: Final answer
    x = 52,018.14

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