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Finding the Fourth Proportional to 73,135.80, 100,926.14 and 40,870.94

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Solution

The fourth proportional to 73,135.80, 100,926.14 and 40,870.94 is: 56,401.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,135.80 : 100,926.14 = 40,870.94 : x
  2. Step 2: Convert to fraction form
    73,135.80/100,926.14 = 40,870.94/x
  3. Step 3: Cross multiply
    73,135.80x = 100,926.14 × 40,870.94
  4. Step 4: Simplify right side
    73,135.80x = 4,124,945,503.39
  5. Step 5: Solve for x
    x = 4,124,945,503.39/73,135.80
  6. Step 6: Final answer
    x = 56,401.18

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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.