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Finding the Fourth Proportional to 73,278.60, 101,139.20 and 43,073.68

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Solution

The fourth proportional to 73,278.60, 101,139.20 and 43,073.68 is: 59,450.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,278.60 : 101,139.20 = 43,073.68 : x
  2. Step 2: Convert to fraction form
    73,278.60/101,139.20 = 43,073.68/x
  3. Step 3: Cross multiply
    73,278.60x = 101,139.20 × 43,073.68
  4. Step 4: Simplify right side
    73,278.60x = 4,356,437,536.26
  5. Step 5: Solve for x
    x = 4,356,437,536.26/73,278.60
  6. Step 6: Final answer
    x = 59,450.34

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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.