Home / 65,528.46-90,408.06-38,680.02

Finding the Fourth Proportional to 65,528.46, 90,408.06 and 38,680.02

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Solution

The fourth proportional to 65,528.46, 90,408.06 and 38,680.02 is: 53,365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,528.46 : 90,408.06 = 38,680.02 : x
  2. Step 2: Convert to fraction form
    65,528.46/90,408.06 = 38,680.02/x
  3. Step 3: Cross multiply
    65,528.46x = 90,408.06 × 38,680.02
  4. Step 4: Simplify right side
    65,528.46x = 3,496,985,568.96
  5. Step 5: Solve for x
    x = 3,496,985,568.96/65,528.46
  6. Step 6: Final answer
    x = 53,365.90

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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.