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Finding the Fourth Proportional to 70,338.44, 105,507.50 and 54,351.23

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Solution

The fourth proportional to 70,338.44, 105,507.50 and 54,351.23 is: 81,526.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,338.44 : 105,507.50 = 54,351.23 : x
  2. Step 2: Convert to fraction form
    70,338.44/105,507.50 = 54,351.23/x
  3. Step 3: Cross multiply
    70,338.44x = 105,507.50 × 54,351.23
  4. Step 4: Simplify right side
    70,338.44x = 5,734,461,599.93
  5. Step 5: Solve for x
    x = 5,734,461,599.93/70,338.44
  6. Step 6: Final answer
    x = 81,526.72

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.