Home / 42,831.77-64,247.28-33,479.65

Finding the Fourth Proportional to 42,831.77, 64,247.28 and 33,479.65

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Solution

The fourth proportional to 42,831.77, 64,247.28 and 33,479.65 is: 50,219.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,831.77 : 64,247.28 = 33,479.65 : x
  2. Step 2: Convert to fraction form
    42,831.77/64,247.28 = 33,479.65/x
  3. Step 3: Cross multiply
    42,831.77x = 64,247.28 × 33,479.65
  4. Step 4: Simplify right side
    42,831.77x = 2,150,976,447.85
  5. Step 5: Solve for x
    x = 2,150,976,447.85/42,831.77
  6. Step 6: Final answer
    x = 50,219.18

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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.