Home / 65,558.35-90,447.19-38,687.41

Finding the Fourth Proportional to 65,558.35, 90,447.19 and 38,687.41

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Solution

The fourth proportional to 65,558.35, 90,447.19 and 38,687.41 is: 53,374.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,558.35 : 90,447.19 = 38,687.41 : x
  2. Step 2: Convert to fraction form
    65,558.35/90,447.19 = 38,687.41/x
  3. Step 3: Cross multiply
    65,558.35x = 90,447.19 × 38,687.41
  4. Step 4: Simplify right side
    65,558.35x = 3,499,167,522.88
  5. Step 5: Solve for x
    x = 3,499,167,522.88/65,558.35
  6. Step 6: Final answer
    x = 53,374.86

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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.