Home / 65,325.50-90,146.58-38,469.14

Finding the Fourth Proportional to 65,325.50, 90,146.58 and 38,469.14

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Solution

The fourth proportional to 65,325.50, 90,146.58 and 38,469.14 is: 53,085.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,325.50 : 90,146.58 = 38,469.14 : x
  2. Step 2: Convert to fraction form
    65,325.50/90,146.58 = 38,469.14/x
  3. Step 3: Cross multiply
    65,325.50x = 90,146.58 × 38,469.14
  4. Step 4: Simplify right side
    65,325.50x = 3,467,861,406.54
  5. Step 5: Solve for x
    x = 3,467,861,406.54/65,325.50
  6. Step 6: Final answer
    x = 53,085.88

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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.