Home / 66,972.22-100,458.32-52,192.19

Finding the Fourth Proportional to 66,972.22, 100,458.32 and 52,192.19

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Solution

The fourth proportional to 66,972.22, 100,458.32 and 52,192.19 is: 78,288.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,972.22 : 100,458.32 = 52,192.19 : x
  2. Step 2: Convert to fraction form
    66,972.22/100,458.32 = 52,192.19/x
  3. Step 3: Cross multiply
    66,972.22x = 100,458.32 × 52,192.19
  4. Step 4: Simplify right side
    66,972.22x = 5,243,139,594.04
  5. Step 5: Solve for x
    x = 5,243,139,594.04/66,972.22
  6. Step 6: Final answer
    x = 78,288.28

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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.