Home / 74,113.14-111,172.80-21,522.63

Finding the Fourth Proportional to 74,113.14, 111,172.80 and 21,522.63

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Solution

The fourth proportional to 74,113.14, 111,172.80 and 21,522.63 is: 32,284.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,113.14 : 111,172.80 = 21,522.63 : x
  2. Step 2: Convert to fraction form
    74,113.14/111,172.80 = 21,522.63/x
  3. Step 3: Cross multiply
    74,113.14x = 111,172.80 × 21,522.63
  4. Step 4: Simplify right side
    74,113.14x = 2,392,731,040.46
  5. Step 5: Solve for x
    x = 2,392,731,040.46/74,113.14
  6. Step 6: Final answer
    x = 32,284.84

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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.