Home / 65,604.98-90,532.26-38,756.11

Finding the Fourth Proportional to 65,604.98, 90,532.26 and 38,756.11

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Solution

The fourth proportional to 65,604.98, 90,532.26 and 38,756.11 is: 53,481.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,604.98 : 90,532.26 = 38,756.11 : x
  2. Step 2: Convert to fraction form
    65,604.98/90,532.26 = 38,756.11/x
  3. Step 3: Cross multiply
    65,604.98x = 90,532.26 × 38,756.11
  4. Step 4: Simplify right side
    65,604.98x = 3,508,678,227.11
  5. Step 5: Solve for x
    x = 3,508,678,227.11/65,604.98
  6. Step 6: Final answer
    x = 53,481.89

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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.