Home / 54,689.58-82,031.64-21,415.74

Finding the Fourth Proportional to 54,689.58, 82,031.64 and 21,415.74

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Solution

The fourth proportional to 54,689.58, 82,031.64 and 21,415.74 is: 32,122.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,689.58 : 82,031.64 = 21,415.74 : x
  2. Step 2: Convert to fraction form
    54,689.58/82,031.64 = 21,415.74/x
  3. Step 3: Cross multiply
    54,689.58x = 82,031.64 × 21,415.74
  4. Step 4: Simplify right side
    54,689.58x = 1,756,768,274.01
  5. Step 5: Solve for x
    x = 1,756,768,274.01/54,689.58
  6. Step 6: Final answer
    x = 32,122.54

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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.