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Finding the Fourth Proportional to 70,408.28, 97,193.86 and 42,108.50

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Solution

The fourth proportional to 70,408.28, 97,193.86 and 42,108.50 is: 58,127.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,408.28 : 97,193.86 = 42,108.50 : x
  2. Step 2: Convert to fraction form
    70,408.28/97,193.86 = 42,108.50/x
  3. Step 3: Cross multiply
    70,408.28x = 97,193.86 × 42,108.50
  4. Step 4: Simplify right side
    70,408.28x = 4,092,687,653.81
  5. Step 5: Solve for x
    x = 4,092,687,653.81/70,408.28
  6. Step 6: Final answer
    x = 58,127.93

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