Home / 80,088.75-120,140.28-40,635.27

Finding the Fourth Proportional to 80,088.75, 120,140.28 and 40,635.27

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Solution

The fourth proportional to 80,088.75, 120,140.28 and 40,635.27 is: 60,956.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,088.75 : 120,140.28 = 40,635.27 : x
  2. Step 2: Convert to fraction form
    80,088.75/120,140.28 = 40,635.27/x
  3. Step 3: Cross multiply
    80,088.75x = 120,140.28 × 40,635.27
  4. Step 4: Simplify right side
    80,088.75x = 4,881,932,715.68
  5. Step 5: Solve for x
    x = 4,881,932,715.68/80,088.75
  6. Step 6: Final answer
    x = 60,956.54

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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.