Home / 66,221.65-99,103.33-40,910.77

Finding the Fourth Proportional to 66,221.65, 99,103.33 and 40,910.77

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Solution

The fourth proportional to 66,221.65, 99,103.33 and 40,910.77 is: 61,224.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,221.65 : 99,103.33 = 40,910.77 : x
  2. Step 2: Convert to fraction form
    66,221.65/99,103.33 = 40,910.77/x
  3. Step 3: Cross multiply
    66,221.65x = 99,103.33 × 40,910.77
  4. Step 4: Simplify right side
    66,221.65x = 4,054,393,539.86
  5. Step 5: Solve for x
    x = 4,054,393,539.86/66,221.65
  6. Step 6: Final answer
    x = 61,224.59

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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.