Home / 80,903.47-121,267.55-41,406.43

Finding the Fourth Proportional to 80,903.47, 121,267.55 and 41,406.43

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Solution

The fourth proportional to 80,903.47, 121,267.55 and 41,406.43 is: 62,064.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,903.47 : 121,267.55 = 41,406.43 : x
  2. Step 2: Convert to fraction form
    80,903.47/121,267.55 = 41,406.43/x
  3. Step 3: Cross multiply
    80,903.47x = 121,267.55 × 41,406.43
  4. Step 4: Simplify right side
    80,903.47x = 5,021,256,113.31
  5. Step 5: Solve for x
    x = 5,021,256,113.31/80,903.47
  6. Step 6: Final answer
    x = 62,064.78

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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.