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Finding the Fourth Proportional to 70,754.38, 97,655 and 40,559.96

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Solution

The fourth proportional to 70,754.38, 97,655 and 40,559.96 is: 55,980.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,754.38 : 97,655 = 40,559.96 : x
  2. Step 2: Convert to fraction form
    70,754.38/97,655 = 40,559.96/x
  3. Step 3: Cross multiply
    70,754.38x = 97,655 × 40,559.96
  4. Step 4: Simplify right side
    70,754.38x = 3,960,882,893.80
  5. Step 5: Solve for x
    x = 3,960,882,893.80/70,754.38
  6. Step 6: Final answer
    x = 55,980.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.