Home / 80,655.40-121,011.90-33,922.60

Finding the Fourth Proportional to 80,655.40, 121,011.90 and 33,922.60

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Solution

The fourth proportional to 80,655.40, 121,011.90 and 33,922.60 is: 50,896.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,655.40 : 121,011.90 = 33,922.60 : x
  2. Step 2: Convert to fraction form
    80,655.40/121,011.90 = 33,922.60/x
  3. Step 3: Cross multiply
    80,655.40x = 121,011.90 × 33,922.60
  4. Step 4: Simplify right side
    80,655.40x = 4,105,038,278.94
  5. Step 5: Solve for x
    x = 4,105,038,278.94/80,655.40
  6. Step 6: Final answer
    x = 50,896.01

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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.