Home / 74,168.28-111,271.23-21,577.68

Finding the Fourth Proportional to 74,168.28, 111,271.23 and 21,577.68

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Solution

The fourth proportional to 74,168.28, 111,271.23 and 21,577.68 is: 32,371.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,168.28 : 111,271.23 = 21,577.68 : x
  2. Step 2: Convert to fraction form
    74,168.28/111,271.23 = 21,577.68/x
  3. Step 3: Cross multiply
    74,168.28x = 111,271.23 × 21,577.68
  4. Step 4: Simplify right side
    74,168.28x = 2,400,974,994.15
  5. Step 5: Solve for x
    x = 2,400,974,994.15/74,168.28
  6. Step 6: Final answer
    x = 32,371.99

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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.