Home / 66,488.40-99,708.30-22,116.60

Finding the Fourth Proportional to 66,488.40, 99,708.30 and 22,116.60

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Solution

The fourth proportional to 66,488.40, 99,708.30 and 22,116.60 is: 33,166.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,488.40 : 99,708.30 = 22,116.60 : x
  2. Step 2: Convert to fraction form
    66,488.40/99,708.30 = 22,116.60/x
  3. Step 3: Cross multiply
    66,488.40x = 99,708.30 × 22,116.60
  4. Step 4: Simplify right side
    66,488.40x = 2,205,208,587.78
  5. Step 5: Solve for x
    x = 2,205,208,587.78/66,488.40
  6. Step 6: Final answer
    x = 33,166.82

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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.