Home / 80,953.22-121,356.33-28,334.00

Finding the Fourth Proportional to 80,953.22, 121,356.33 and 28,334.00

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Solution

The fourth proportional to 80,953.22, 121,356.33 and 28,334.00 is: 42,475.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,953.22 : 121,356.33 = 28,334.00 : x
  2. Step 2: Convert to fraction form
    80,953.22/121,356.33 = 28,334.00/x
  3. Step 3: Cross multiply
    80,953.22x = 121,356.33 × 28,334.00
  4. Step 4: Simplify right side
    80,953.22x = 3,438,510,451.36
  5. Step 5: Solve for x
    x = 3,438,510,451.36/80,953.22
  6. Step 6: Final answer
    x = 42,475.28

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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.