Home / 66,531.78-99,722.34-22,148.10

Finding the Fourth Proportional to 66,531.78, 99,722.34 and 22,148.10

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Solution

The fourth proportional to 66,531.78, 99,722.34 and 22,148.10 is: 33,197.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,531.78 : 99,722.34 = 22,148.10 : x
  2. Step 2: Convert to fraction form
    66,531.78/99,722.34 = 22,148.10/x
  3. Step 3: Cross multiply
    66,531.78x = 99,722.34 × 22,148.10
  4. Step 4: Simplify right side
    66,531.78x = 2,208,660,358.55
  5. Step 5: Solve for x
    x = 2,208,660,358.55/66,531.78
  6. Step 6: Final answer
    x = 33,197.07

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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.