Home / 67,831.68-101,765.76-28,368

Finding the Fourth Proportional to 67,831.68, 101,765.76 and 28,368

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Solution

The fourth proportional to 67,831.68, 101,765.76 and 28,368 is: 42,559.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,831.68 : 101,765.76 = 28,368 : x
  2. Step 2: Convert to fraction form
    67,831.68/101,765.76 = 28,368/x
  3. Step 3: Cross multiply
    67,831.68x = 101,765.76 × 28,368
  4. Step 4: Simplify right side
    67,831.68x = 2,886,891,079.68
  5. Step 5: Solve for x
    x = 2,886,891,079.68/67,831.68
  6. Step 6: Final answer
    x = 42,559.63

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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.