Home / 74,574.08-111,861-51,129.44

Finding the Fourth Proportional to 74,574.08, 111,861 and 51,129.44

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Solution

The fourth proportional to 74,574.08, 111,861 and 51,129.44 is: 76,694.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,574.08 : 111,861 = 51,129.44 : x
  2. Step 2: Convert to fraction form
    74,574.08/111,861 = 51,129.44/x
  3. Step 3: Cross multiply
    74,574.08x = 111,861 × 51,129.44
  4. Step 4: Simplify right side
    74,574.08x = 5,719,390,287.84
  5. Step 5: Solve for x
    x = 5,719,390,287.84/74,574.08
  6. Step 6: Final answer
    x = 76,694.08

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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.