Home / 85,998.22-128,987.60-29,827.96

Finding the Fourth Proportional to 85,998.22, 128,987.60 and 29,827.96

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Solution

The fourth proportional to 85,998.22, 128,987.60 and 29,827.96 is: 44,738.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,998.22 : 128,987.60 = 29,827.96 : x
  2. Step 2: Convert to fraction form
    85,998.22/128,987.60 = 29,827.96/x
  3. Step 3: Cross multiply
    85,998.22x = 128,987.60 × 29,827.96
  4. Step 4: Simplify right side
    85,998.22x = 3,847,436,973.30
  5. Step 5: Solve for x
    x = 3,847,436,973.30/85,998.22
  6. Step 6: Final answer
    x = 44,738.57

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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.