Home / 82,721.34-124,103.87-43,267.86

Finding the Fourth Proportional to 82,721.34, 124,103.87 and 43,267.86

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Solution

The fourth proportional to 82,721.34, 124,103.87 and 43,267.86 is: 64,913.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,721.34 : 124,103.87 = 43,267.86 : x
  2. Step 2: Convert to fraction form
    82,721.34/124,103.87 = 43,267.86/x
  3. Step 3: Cross multiply
    82,721.34x = 124,103.87 × 43,267.86
  4. Step 4: Simplify right side
    82,721.34x = 5,369,708,252.10
  5. Step 5: Solve for x
    x = 5,369,708,252.10/82,721.34
  6. Step 6: Final answer
    x = 64,913.22

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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.