Home / 54,655.13-81,988.10-15,212.22

Finding the Fourth Proportional to 54,655.13, 81,988.10 and 15,212.22

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Solution

The fourth proportional to 54,655.13, 81,988.10 and 15,212.22 is: 22,819.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,655.13 : 81,988.10 = 15,212.22 : x
  2. Step 2: Convert to fraction form
    54,655.13/81,988.10 = 15,212.22/x
  3. Step 3: Cross multiply
    54,655.13x = 81,988.10 × 15,212.22
  4. Step 4: Simplify right side
    54,655.13x = 1,247,220,938.52
  5. Step 5: Solve for x
    x = 1,247,220,938.52/54,655.13
  6. Step 6: Final answer
    x = 22,819.84

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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.