Home / 76,491.06-114,639.24-43,229.68

Finding the Fourth Proportional to 76,491.06, 114,639.24 and 43,229.68

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Solution

The fourth proportional to 76,491.06, 114,639.24 and 43,229.68 is: 64,789.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,491.06 : 114,639.24 = 43,229.68 : x
  2. Step 2: Convert to fraction form
    76,491.06/114,639.24 = 43,229.68/x
  3. Step 3: Cross multiply
    76,491.06x = 114,639.24 × 43,229.68
  4. Step 4: Simplify right side
    76,491.06x = 4,955,817,660.64
  5. Step 5: Solve for x
    x = 4,955,817,660.64/76,491.06
  6. Step 6: Final answer
    x = 64,789.50

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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.