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Finding the Fourth Proportional to 73,901, 101,985.90 and 40,369.16

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Solution

The fourth proportional to 73,901, 101,985.90 and 40,369.16 is: 55,710.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,901 : 101,985.90 = 40,369.16 : x
  2. Step 2: Convert to fraction form
    73,901/101,985.90 = 40,369.16/x
  3. Step 3: Cross multiply
    73,901x = 101,985.90 × 40,369.16
  4. Step 4: Simplify right side
    73,901x = 4,117,085,114.84
  5. Step 5: Solve for x
    x = 4,117,085,114.84/73,901
  6. Step 6: Final answer
    x = 55,710.82

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