Home / 42,942.12-64,382.04-28,867.24

Finding the Fourth Proportional to 42,942.12, 64,382.04 and 28,867.24

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Solution

The fourth proportional to 42,942.12, 64,382.04 and 28,867.24 is: 43,279.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,942.12 : 64,382.04 = 28,867.24 : x
  2. Step 2: Convert to fraction form
    42,942.12/64,382.04 = 28,867.24/x
  3. Step 3: Cross multiply
    42,942.12x = 64,382.04 × 28,867.24
  4. Step 4: Simplify right side
    42,942.12x = 1,858,531,800.37
  5. Step 5: Solve for x
    x = 1,858,531,800.37/42,942.12
  6. Step 6: Final answer
    x = 43,279.93

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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.