Home / 72,621.06-100,227.15-40,792.38

Finding the Fourth Proportional to 72,621.06, 100,227.15 and 40,792.38

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Solution

The fourth proportional to 72,621.06, 100,227.15 and 40,792.38 is: 56,299.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,621.06 : 100,227.15 = 40,792.38 : x
  2. Step 2: Convert to fraction form
    72,621.06/100,227.15 = 40,792.38/x
  3. Step 3: Cross multiply
    72,621.06x = 100,227.15 × 40,792.38
  4. Step 4: Simplify right side
    72,621.06x = 4,088,503,989.12
  5. Step 5: Solve for x
    x = 4,088,503,989.12/72,621.06
  6. Step 6: Final answer
    x = 56,299.15

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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.