Home / 74,403.99-111,757.05-65,716.20

Finding the Fourth Proportional to 74,403.99, 111,757.05 and 65,716.20

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Solution

The fourth proportional to 74,403.99, 111,757.05 and 65,716.20 is: 98,707.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,403.99 : 111,757.05 = 65,716.20 : x
  2. Step 2: Convert to fraction form
    74,403.99/111,757.05 = 65,716.20/x
  3. Step 3: Cross multiply
    74,403.99x = 111,757.05 × 65,716.20
  4. Step 4: Simplify right side
    74,403.99x = 7,344,248,649.21
  5. Step 5: Solve for x
    x = 7,344,248,649.21/74,403.99
  6. Step 6: Final answer
    x = 98,707.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.