Home / 76,785.46-105,965.68-42,797.44

Finding the Fourth Proportional to 76,785.46, 105,965.68 and 42,797.44

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Solution

The fourth proportional to 76,785.46, 105,965.68 and 42,797.44 is: 59,061.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,785.46 : 105,965.68 = 42,797.44 : x
  2. Step 2: Convert to fraction form
    76,785.46/105,965.68 = 42,797.44/x
  3. Step 3: Cross multiply
    76,785.46x = 105,965.68 × 42,797.44
  4. Step 4: Simplify right side
    76,785.46x = 4,535,059,831.86
  5. Step 5: Solve for x
    x = 4,535,059,831.86/76,785.46
  6. Step 6: Final answer
    x = 59,061.44

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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.