Home / 66,220.52-99,328.55-28,780.58

Finding the Fourth Proportional to 66,220.52, 99,328.55 and 28,780.58

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Solution

The fourth proportional to 66,220.52, 99,328.55 and 28,780.58 is: 43,169.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,220.52 : 99,328.55 = 28,780.58 : x
  2. Step 2: Convert to fraction form
    66,220.52/99,328.55 = 28,780.58/x
  3. Step 3: Cross multiply
    66,220.52x = 99,328.55 × 28,780.58
  4. Step 4: Simplify right side
    66,220.52x = 2,858,733,383.98
  5. Step 5: Solve for x
    x = 2,858,733,383.98/66,220.52
  6. Step 6: Final answer
    x = 43,169.91

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1.5x scale

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.