Home / 55,628.92-76,766.88-30,478.24

Finding the Fourth Proportional to 55,628.92, 76,766.88 and 30,478.24

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Solution

The fourth proportional to 55,628.92, 76,766.88 and 30,478.24 is: 42,059.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,628.92 : 76,766.88 = 30,478.24 : x
  2. Step 2: Convert to fraction form
    55,628.92/76,766.88 = 30,478.24/x
  3. Step 3: Cross multiply
    55,628.92x = 76,766.88 × 30,478.24
  4. Step 4: Simplify right side
    55,628.92x = 2,339,719,392.69
  5. Step 5: Solve for x
    x = 2,339,719,392.69/55,628.92
  6. Step 6: Final answer
    x = 42,059.41

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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.