Home / 74,669.19-112,002.39-18,509.43

Finding the Fourth Proportional to 74,669.19, 112,002.39 and 18,509.43

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Solution

The fourth proportional to 74,669.19, 112,002.39 and 18,509.43 is: 27,763.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,669.19 : 112,002.39 = 18,509.43 : x
  2. Step 2: Convert to fraction form
    74,669.19/112,002.39 = 18,509.43/x
  3. Step 3: Cross multiply
    74,669.19x = 112,002.39 × 18,509.43
  4. Step 4: Simplify right side
    74,669.19x = 2,073,100,397.54
  5. Step 5: Solve for x
    x = 2,073,100,397.54/74,669.19
  6. Step 6: Final answer
    x = 27,763.80

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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.