Home / 85,366.23-128,039.76-32,738.79

Finding the Fourth Proportional to 85,366.23, 128,039.76 and 32,738.79

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Solution

The fourth proportional to 85,366.23, 128,039.76 and 32,738.79 is: 49,104.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,366.23 : 128,039.76 = 32,738.79 : x
  2. Step 2: Convert to fraction form
    85,366.23/128,039.76 = 32,738.79/x
  3. Step 3: Cross multiply
    85,366.23x = 128,039.76 × 32,738.79
  4. Step 4: Simplify right side
    85,366.23x = 4,191,866,814.29
  5. Step 5: Solve for x
    x = 4,191,866,814.29/85,366.23
  6. Step 6: Final answer
    x = 49,104.51

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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.