Home / 66,068.19-99,102.33-19,321.11

Finding the Fourth Proportional to 66,068.19, 99,102.33 and 19,321.11

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Solution

The fourth proportional to 66,068.19, 99,102.33 and 19,321.11 is: 28,981.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,068.19 : 99,102.33 = 19,321.11 : x
  2. Step 2: Convert to fraction form
    66,068.19/99,102.33 = 19,321.11/x
  3. Step 3: Cross multiply
    66,068.19x = 99,102.33 × 19,321.11
  4. Step 4: Simplify right side
    66,068.19x = 1,914,767,019.19
  5. Step 5: Solve for x
    x = 1,914,767,019.19/66,068.19
  6. Step 6: Final answer
    x = 28,981.68

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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.