Home / 82,342.48-123,679.05-49,127.35

Finding the Fourth Proportional to 82,342.48, 123,679.05 and 49,127.35

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Solution

The fourth proportional to 82,342.48, 123,679.05 and 49,127.35 is: 73,789.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,342.48 : 123,679.05 = 49,127.35 : x
  2. Step 2: Convert to fraction form
    82,342.48/123,679.05 = 49,127.35/x
  3. Step 3: Cross multiply
    82,342.48x = 123,679.05 × 49,127.35
  4. Step 4: Simplify right side
    82,342.48x = 6,076,023,977.02
  5. Step 5: Solve for x
    x = 6,076,023,977.02/82,342.48
  6. Step 6: Final answer
    x = 73,789.66

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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.