Home / 61,789.44-85,224.36-39,132.12

Finding the Fourth Proportional to 61,789.44, 85,224.36 and 39,132.12

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Solution

The fourth proportional to 61,789.44, 85,224.36 and 39,132.12 is: 53,973.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,789.44 : 85,224.36 = 39,132.12 : x
  2. Step 2: Convert to fraction form
    61,789.44/85,224.36 = 39,132.12/x
  3. Step 3: Cross multiply
    61,789.44x = 85,224.36 × 39,132.12
  4. Step 4: Simplify right side
    61,789.44x = 3,335,009,882.44
  5. Step 5: Solve for x
    x = 3,335,009,882.44/61,789.44
  6. Step 6: Final answer
    x = 53,973.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.