Home / 67,142.40-92,665.92-38,471.04

Finding the Fourth Proportional to 67,142.40, 92,665.92 and 38,471.04

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Solution

The fourth proportional to 67,142.40, 92,665.92 and 38,471.04 is: 53,095.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,142.40 : 92,665.92 = 38,471.04 : x
  2. Step 2: Convert to fraction form
    67,142.40/92,665.92 = 38,471.04/x
  3. Step 3: Cross multiply
    67,142.40x = 92,665.92 × 38,471.04
  4. Step 4: Simplify right side
    67,142.40x = 3,564,954,314.96
  5. Step 5: Solve for x
    x = 3,564,954,314.96/67,142.40
  6. Step 6: Final answer
    x = 53,095.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.