Home / 66,645.99-99,971.08-29,186.80

Finding the Fourth Proportional to 66,645.99, 99,971.08 and 29,186.80

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Solution

The fourth proportional to 66,645.99, 99,971.08 and 29,186.80 is: 43,781.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,645.99 : 99,971.08 = 29,186.80 : x
  2. Step 2: Convert to fraction form
    66,645.99/99,971.08 = 29,186.80/x
  3. Step 3: Cross multiply
    66,645.99x = 99,971.08 × 29,186.80
  4. Step 4: Simplify right side
    66,645.99x = 2,917,835,594.85
  5. Step 5: Solve for x
    x = 2,917,835,594.85/66,645.99
  6. Step 6: Final answer
    x = 43,781.11

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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.