Home / 65,853.19-90,877.56-35,638.73

Finding the Fourth Proportional to 65,853.19, 90,877.56 and 35,638.73

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Solution

The fourth proportional to 65,853.19, 90,877.56 and 35,638.73 is: 49,181.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,853.19 : 90,877.56 = 35,638.73 : x
  2. Step 2: Convert to fraction form
    65,853.19/90,877.56 = 35,638.73/x
  3. Step 3: Cross multiply
    65,853.19x = 90,877.56 × 35,638.73
  4. Step 4: Simplify right side
    65,853.19x = 3,238,760,823.90
  5. Step 5: Solve for x
    x = 3,238,760,823.90/65,853.19
  6. Step 6: Final answer
    x = 49,181.53

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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.