Home / 48,512.46-72,780.37-20,440.55

Finding the Fourth Proportional to 48,512.46, 72,780.37 and 20,440.55

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Solution

The fourth proportional to 48,512.46, 72,780.37 and 20,440.55 is: 30,665.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,512.46 : 72,780.37 = 20,440.55 : x
  2. Step 2: Convert to fraction form
    48,512.46/72,780.37 = 20,440.55/x
  3. Step 3: Cross multiply
    48,512.46x = 72,780.37 × 20,440.55
  4. Step 4: Simplify right side
    48,512.46x = 1,487,670,513.46
  5. Step 5: Solve for x
    x = 1,487,670,513.46/48,512.46
  6. Step 6: Final answer
    x = 30,665.74

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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.