Home / 54,712.28-82,068.35-21,408.98

Finding the Fourth Proportional to 54,712.28, 82,068.35 and 21,408.98

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Solution

The fourth proportional to 54,712.28, 82,068.35 and 21,408.98 is: 32,113.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,712.28 : 82,068.35 = 21,408.98 : x
  2. Step 2: Convert to fraction form
    54,712.28/82,068.35 = 21,408.98/x
  3. Step 3: Cross multiply
    54,712.28x = 82,068.35 × 21,408.98
  4. Step 4: Simplify right side
    54,712.28x = 1,756,999,146.40
  5. Step 5: Solve for x
    x = 1,756,999,146.40/54,712.28
  6. Step 6: Final answer
    x = 32,113.43

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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.