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Finding the Fourth Proportional to 73,314.10, 101,173.40 and 39,780.10

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Solution

The fourth proportional to 73,314.10, 101,173.40 and 39,780.10 is: 54,896.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,314.10 : 101,173.40 = 39,780.10 : x
  2. Step 2: Convert to fraction form
    73,314.10/101,173.40 = 39,780.10/x
  3. Step 3: Cross multiply
    73,314.10x = 101,173.40 × 39,780.10
  4. Step 4: Simplify right side
    73,314.10x = 4,024,687,700.74
  5. Step 5: Solve for x
    x = 4,024,687,700.74/73,314.10
  6. Step 6: Final answer
    x = 54,896.51

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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.