Home / 82,173.89-123,276.81-31,569.23

Finding the Fourth Proportional to 82,173.89, 123,276.81 and 31,569.23

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Solution

The fourth proportional to 82,173.89, 123,276.81 and 31,569.23 is: 47,359.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,173.89 : 123,276.81 = 31,569.23 : x
  2. Step 2: Convert to fraction form
    82,173.89/123,276.81 = 31,569.23/x
  3. Step 3: Cross multiply
    82,173.89x = 123,276.81 × 31,569.23
  4. Step 4: Simplify right side
    82,173.89x = 3,891,753,778.75
  5. Step 5: Solve for x
    x = 3,891,753,778.75/82,173.89
  6. Step 6: Final answer
    x = 47,359.98

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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.