Home / 83,936.38-125,905.02-31,345.42

Finding the Fourth Proportional to 83,936.38, 125,905.02 and 31,345.42

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Solution

The fourth proportional to 83,936.38, 125,905.02 and 31,345.42 is: 47,018.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,936.38 : 125,905.02 = 31,345.42 : x
  2. Step 2: Convert to fraction form
    83,936.38/125,905.02 = 31,345.42/x
  3. Step 3: Cross multiply
    83,936.38x = 125,905.02 × 31,345.42
  4. Step 4: Simplify right side
    83,936.38x = 3,946,545,732.01
  5. Step 5: Solve for x
    x = 3,946,545,732.01/83,936.38
  6. Step 6: Final answer
    x = 47,018.30

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1.5x scale

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.