Home / 74,340.76-111,451.66-38,784.23

Finding the Fourth Proportional to 74,340.76, 111,451.66 and 38,784.23

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Solution

The fourth proportional to 74,340.76, 111,451.66 and 38,784.23 is: 58,145.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,340.76 : 111,451.66 = 38,784.23 : x
  2. Step 2: Convert to fraction form
    74,340.76/111,451.66 = 38,784.23/x
  3. Step 3: Cross multiply
    74,340.76x = 111,451.66 × 38,784.23
  4. Step 4: Simplify right side
    74,340.76x = 4,322,566,815.32
  5. Step 5: Solve for x
    x = 4,322,566,815.32/74,340.76
  6. Step 6: Final answer
    x = 58,145.32

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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.