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Finding the Fourth Proportional to 70,387.56, 105,559.38 and 23,629.68

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Solution

The fourth proportional to 70,387.56, 105,559.38 and 23,629.68 is: 35,437.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,387.56 : 105,559.38 = 23,629.68 : x
  2. Step 2: Convert to fraction form
    70,387.56/105,559.38 = 23,629.68/x
  3. Step 3: Cross multiply
    70,387.56x = 105,559.38 × 23,629.68
  4. Step 4: Simplify right side
    70,387.56x = 2,494,334,370.40
  5. Step 5: Solve for x
    x = 2,494,334,370.40/70,387.56
  6. Step 6: Final answer
    x = 35,437.15

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Why These Related Problems?

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