Home / 54,473.22-81,688.68-21,188.88

Finding the Fourth Proportional to 54,473.22, 81,688.68 and 21,188.88

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Solution

The fourth proportional to 54,473.22, 81,688.68 and 21,188.88 is: 31,775.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,473.22 : 81,688.68 = 21,188.88 : x
  2. Step 2: Convert to fraction form
    54,473.22/81,688.68 = 21,188.88/x
  3. Step 3: Cross multiply
    54,473.22x = 81,688.68 × 21,188.88
  4. Step 4: Simplify right side
    54,473.22x = 1,730,891,637.88
  5. Step 5: Solve for x
    x = 1,730,891,637.88/54,473.22
  6. Step 6: Final answer
    x = 31,775.09

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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.