Home / 74,355.77-111,546.01-29,978.81

Finding the Fourth Proportional to 74,355.77, 111,546.01 and 29,978.81

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Solution

The fourth proportional to 74,355.77, 111,546.01 and 29,978.81 is: 44,973.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,355.77 : 111,546.01 = 29,978.81 : x
  2. Step 2: Convert to fraction form
    74,355.77/111,546.01 = 29,978.81/x
  3. Step 3: Cross multiply
    74,355.77x = 111,546.01 × 29,978.81
  4. Step 4: Simplify right side
    74,355.77x = 3,344,016,538.09
  5. Step 5: Solve for x
    x = 3,344,016,538.09/74,355.77
  6. Step 6: Final answer
    x = 44,973.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.