Home / 66,628.64-99,909-22,239.44

Finding the Fourth Proportional to 66,628.64, 99,909 and 22,239.44

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Solution

The fourth proportional to 66,628.64, 99,909 and 22,239.44 is: 33,347.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,628.64 : 99,909 = 22,239.44 : x
  2. Step 2: Convert to fraction form
    66,628.64/99,909 = 22,239.44/x
  3. Step 3: Cross multiply
    66,628.64x = 99,909 × 22,239.44
  4. Step 4: Simplify right side
    66,628.64x = 2,221,920,210.96
  5. Step 5: Solve for x
    x = 2,221,920,210.96/66,628.64
  6. Step 6: Final answer
    x = 33,347.82

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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.