Home / 80,953.04-121,356.05-28,333.82

Finding the Fourth Proportional to 80,953.04, 121,356.05 and 28,333.82

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Solution

The fourth proportional to 80,953.04, 121,356.05 and 28,333.82 is: 42,474.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,953.04 : 121,356.05 = 28,333.82 : x
  2. Step 2: Convert to fraction form
    80,953.04/121,356.05 = 28,333.82/x
  3. Step 3: Cross multiply
    80,953.04x = 121,356.05 × 28,333.82
  4. Step 4: Simplify right side
    80,953.04x = 3,438,479,728.16
  5. Step 5: Solve for x
    x = 3,438,479,728.16/80,953.04
  6. Step 6: Final answer
    x = 42,474.99

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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.