Home / 74,113.10-111,172.72-21,522.59

Finding the Fourth Proportional to 74,113.10, 111,172.72 and 21,522.59

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Solution

The fourth proportional to 74,113.10, 111,172.72 and 21,522.59 is: 32,284.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,113.10 : 111,172.72 = 21,522.59 : x
  2. Step 2: Convert to fraction form
    74,113.10/111,172.72 = 21,522.59/x
  3. Step 3: Cross multiply
    74,113.10x = 111,172.72 × 21,522.59
  4. Step 4: Simplify right side
    74,113.10x = 2,392,724,871.74
  5. Step 5: Solve for x
    x = 2,392,724,871.74/74,113.10
  6. Step 6: Final answer
    x = 32,284.78

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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.