Home / 67,269.38-92,831.76-38,991.47

Finding the Fourth Proportional to 67,269.38, 92,831.76 and 38,991.47

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Solution

The fourth proportional to 67,269.38, 92,831.76 and 38,991.47 is: 53,808.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,269.38 : 92,831.76 = 38,991.47 : x
  2. Step 2: Convert to fraction form
    67,269.38/92,831.76 = 38,991.47/x
  3. Step 3: Cross multiply
    67,269.38x = 92,831.76 × 38,991.47
  4. Step 4: Simplify right side
    67,269.38x = 3,619,646,320.93
  5. Step 5: Solve for x
    x = 3,619,646,320.93/67,269.38
  6. Step 6: Final answer
    x = 53,808.23

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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.