Home / 60,811.20-83,920.86-38,151.12

Finding the Fourth Proportional to 60,811.20, 83,920.86 and 38,151.12

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Solution

The fourth proportional to 60,811.20, 83,920.86 and 38,151.12 is: 52,649.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,811.20 : 83,920.86 = 38,151.12 : x
  2. Step 2: Convert to fraction form
    60,811.20/83,920.86 = 38,151.12/x
  3. Step 3: Cross multiply
    60,811.20x = 83,920.86 × 38,151.12
  4. Step 4: Simplify right side
    60,811.20x = 3,201,674,800.36
  5. Step 5: Solve for x
    x = 3,201,674,800.36/60,811.20
  6. Step 6: Final answer
    x = 52,649.43

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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.