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Finding the Fourth Proportional to 70,978.21, 97,949.77 and 40,765.50

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Solution

The fourth proportional to 70,978.21, 97,949.77 and 40,765.50 is: 56,256.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,978.21 : 97,949.77 = 40,765.50 : x
  2. Step 2: Convert to fraction form
    70,978.21/97,949.77 = 40,765.50/x
  3. Step 3: Cross multiply
    70,978.21x = 97,949.77 × 40,765.50
  4. Step 4: Simplify right side
    70,978.21x = 3,992,971,247.02
  5. Step 5: Solve for x
    x = 3,992,971,247.02/70,978.21
  6. Step 6: Final answer
    x = 56,256.30

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Why These Related Problems?

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