Home / 84,426.32-126,066.34-75,561.68

Finding the Fourth Proportional to 84,426.32, 126,066.34 and 75,561.68

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Solution

The fourth proportional to 84,426.32, 126,066.34 and 75,561.68 is: 112,829.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,426.32 : 126,066.34 = 75,561.68 : x
  2. Step 2: Convert to fraction form
    84,426.32/126,066.34 = 75,561.68/x
  3. Step 3: Cross multiply
    84,426.32x = 126,066.34 × 75,561.68
  4. Step 4: Simplify right side
    84,426.32x = 9,525,784,441.85
  5. Step 5: Solve for x
    x = 9,525,784,441.85/84,426.32
  6. Step 6: Final answer
    x = 112,829.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.