Home / 66,221.77-99,349.22-21,851.05

Finding the Fourth Proportional to 66,221.77, 99,349.22 and 21,851.05

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Solution

The fourth proportional to 66,221.77, 99,349.22 and 21,851.05 is: 32,782.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,221.77 : 99,349.22 = 21,851.05 : x
  2. Step 2: Convert to fraction form
    66,221.77/99,349.22 = 21,851.05/x
  3. Step 3: Cross multiply
    66,221.77x = 99,349.22 × 21,851.05
  4. Step 4: Simplify right side
    66,221.77x = 2,170,884,664.43
  5. Step 5: Solve for x
    x = 2,170,884,664.43/66,221.77
  6. Step 6: Final answer
    x = 32,782.04

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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.