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Finding the Fourth Proportional to 81,995.32, 122,992.98 and 22,832.51

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Solution

The fourth proportional to 81,995.32, 122,992.98 and 22,832.51 is: 34,248.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,995.32 : 122,992.98 = 22,832.51 : x
  2. Step 2: Convert to fraction form
    81,995.32/122,992.98 = 22,832.51/x
  3. Step 3: Cross multiply
    81,995.32x = 122,992.98 × 22,832.51
  4. Step 4: Simplify right side
    81,995.32x = 2,808,238,331.62
  5. Step 5: Solve for x
    x = 2,808,238,331.62/81,995.32
  6. Step 6: Final answer
    x = 34,248.77

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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.