Home / 78,743.08-118,031.06-38,705.60

Finding the Fourth Proportional to 78,743.08, 118,031.06 and 38,705.60

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Solution

The fourth proportional to 78,743.08, 118,031.06 and 38,705.60 is: 58,017.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,743.08 : 118,031.06 = 38,705.60 : x
  2. Step 2: Convert to fraction form
    78,743.08/118,031.06 = 38,705.60/x
  3. Step 3: Cross multiply
    78,743.08x = 118,031.06 × 38,705.60
  4. Step 4: Simplify right side
    78,743.08x = 4,568,462,212.25
  5. Step 5: Solve for x
    x = 4,568,462,212.25/78,743.08
  6. Step 6: Final answer
    x = 58,017.32

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