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Finding the Fourth Proportional to 73,639.84, 101,624.20 and 40,105.84

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Solution

The fourth proportional to 73,639.84, 101,624.20 and 40,105.84 is: 55,346.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,639.84 : 101,624.20 = 40,105.84 : x
  2. Step 2: Convert to fraction form
    73,639.84/101,624.20 = 40,105.84/x
  3. Step 3: Cross multiply
    73,639.84x = 101,624.20 × 40,105.84
  4. Step 4: Simplify right side
    73,639.84x = 4,075,723,905.33
  5. Step 5: Solve for x
    x = 4,075,723,905.33/73,639.84
  6. Step 6: Final answer
    x = 55,346.72

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1.5x scale

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.