Home / 74,904.32-112,356.78-18,744.27

Finding the Fourth Proportional to 74,904.32, 112,356.78 and 18,744.27

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Solution

The fourth proportional to 74,904.32, 112,356.78 and 18,744.27 is: 28,116.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,904.32 : 112,356.78 = 18,744.27 : x
  2. Step 2: Convert to fraction form
    74,904.32/112,356.78 = 18,744.27/x
  3. Step 3: Cross multiply
    74,904.32x = 112,356.78 × 18,744.27
  4. Step 4: Simplify right side
    74,904.32x = 2,106,045,820.65
  5. Step 5: Solve for x
    x = 2,106,045,820.65/74,904.32
  6. Step 6: Final answer
    x = 28,116.48

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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.