Home / 80,816.05-121,265.61-35,868.21

Finding the Fourth Proportional to 80,816.05, 121,265.61 and 35,868.21

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Solution

The fourth proportional to 80,816.05, 121,265.61 and 35,868.21 is: 53,820.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,816.05 : 121,265.61 = 35,868.21 : x
  2. Step 2: Convert to fraction form
    80,816.05/121,265.61 = 35,868.21/x
  3. Step 3: Cross multiply
    80,816.05x = 121,265.61 × 35,868.21
  4. Step 4: Simplify right side
    80,816.05x = 4,349,580,365.26
  5. Step 5: Solve for x
    x = 4,349,580,365.26/80,816.05
  6. Step 6: Final answer
    x = 53,820.75

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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.