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Finding the Fourth Proportional to 70,401.09, 105,559.05 and 27,655.35

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Solution

The fourth proportional to 70,401.09, 105,559.05 and 27,655.35 is: 41,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,401.09 : 105,559.05 = 27,655.35 : x
  2. Step 2: Convert to fraction form
    70,401.09/105,559.05 = 27,655.35/x
  3. Step 3: Cross multiply
    70,401.09x = 105,559.05 × 27,655.35
  4. Step 4: Simplify right side
    70,401.09x = 2,919,272,473.42
  5. Step 5: Solve for x
    x = 2,919,272,473.42/70,401.09
  6. Step 6: Final answer
    x = 41,466.30

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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.