Home / 72,836.92-100,543.16-56,926.49

Finding the Fourth Proportional to 72,836.92, 100,543.16 and 56,926.49

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Solution

The fourth proportional to 72,836.92, 100,543.16 and 56,926.49 is: 78,580.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,836.92 : 100,543.16 = 56,926.49 : x
  2. Step 2: Convert to fraction form
    72,836.92/100,543.16 = 56,926.49/x
  3. Step 3: Cross multiply
    72,836.92x = 100,543.16 × 56,926.49
  4. Step 4: Simplify right side
    72,836.92x = 5,723,568,907.68
  5. Step 5: Solve for x
    x = 5,723,568,907.68/72,836.92
  6. Step 6: Final answer
    x = 78,580.61

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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.