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Finding the Fourth Proportional to 73,818, 101,871 and 40,286.16

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Solution

The fourth proportional to 73,818, 101,871 and 40,286.16 is: 55,596.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,818 : 101,871 = 40,286.16 : x
  2. Step 2: Convert to fraction form
    73,818/101,871 = 40,286.16/x
  3. Step 3: Cross multiply
    73,818x = 101,871 × 40,286.16
  4. Step 4: Simplify right side
    73,818x = 4,103,991,405.36
  5. Step 5: Solve for x
    x = 4,103,991,405.36/73,818
  6. Step 6: Final answer
    x = 55,596.08

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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.