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Finding the Fourth Proportional to 58,637.40, 80,918.69 and 31,779.69

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Solution

The fourth proportional to 58,637.40, 80,918.69 and 31,779.69 is: 43,855.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,637.40 : 80,918.69 = 31,779.69 : x
  2. Step 2: Convert to fraction form
    58,637.40/80,918.69 = 31,779.69/x
  3. Step 3: Cross multiply
    58,637.40x = 80,918.69 × 31,779.69
  4. Step 4: Simplify right side
    58,637.40x = 2,571,570,883.41
  5. Step 5: Solve for x
    x = 2,571,570,883.41/58,637.40
  6. Step 6: Final answer
    x = 43,855.47

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