Home / 72,820.14-100,522.78-48,960.66

Finding the Fourth Proportional to 72,820.14, 100,522.78 and 48,960.66

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Solution

The fourth proportional to 72,820.14, 100,522.78 and 48,960.66 is: 67,586.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,820.14 : 100,522.78 = 48,960.66 : x
  2. Step 2: Convert to fraction form
    72,820.14/100,522.78 = 48,960.66/x
  3. Step 3: Cross multiply
    72,820.14x = 100,522.78 × 48,960.66
  4. Step 4: Simplify right side
    72,820.14x = 4,921,661,653.83
  5. Step 5: Solve for x
    x = 4,921,661,653.83/72,820.14
  6. Step 6: Final answer
    x = 67,586.54

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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.