Home / 85,447.44-128,189.33-29,272.47

Finding the Fourth Proportional to 85,447.44, 128,189.33 and 29,272.47

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Solution

The fourth proportional to 85,447.44, 128,189.33 and 29,272.47 is: 43,914.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,447.44 : 128,189.33 = 29,272.47 : x
  2. Step 2: Convert to fraction form
    85,447.44/128,189.33 = 29,272.47/x
  3. Step 3: Cross multiply
    85,447.44x = 128,189.33 × 29,272.47
  4. Step 4: Simplify right side
    85,447.44x = 3,752,418,316.75
  5. Step 5: Solve for x
    x = 3,752,418,316.75/85,447.44
  6. Step 6: Final answer
    x = 43,914.93

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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.