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Finding the Fourth Proportional to 73,773, 101,807.28 and 40,239

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Solution

The fourth proportional to 73,773, 101,807.28 and 40,239 is: 55,530.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,773 : 101,807.28 = 40,239 : x
  2. Step 2: Convert to fraction form
    73,773/101,807.28 = 40,239/x
  3. Step 3: Cross multiply
    73,773x = 101,807.28 × 40,239
  4. Step 4: Simplify right side
    73,773x = 4,096,623,139.92
  5. Step 5: Solve for x
    x = 4,096,623,139.92/73,773
  6. Step 6: Final answer
    x = 55,530.11

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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.