Home / 81,549.32-122,294.64-28,226.82

Finding the Fourth Proportional to 81,549.32, 122,294.64 and 28,226.82

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Solution

The fourth proportional to 81,549.32, 122,294.64 and 28,226.82 is: 42,330.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,549.32 : 122,294.64 = 28,226.82 : x
  2. Step 2: Convert to fraction form
    81,549.32/122,294.64 = 28,226.82/x
  3. Step 3: Cross multiply
    81,549.32x = 122,294.64 × 28,226.82
  4. Step 4: Simplify right side
    81,549.32x = 3,451,988,178.77
  5. Step 5: Solve for x
    x = 3,451,988,178.77/81,549.32
  6. Step 6: Final answer
    x = 42,330.07

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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.