Home / 72,627.76-100,245.36-40,806.91

Finding the Fourth Proportional to 72,627.76, 100,245.36 and 40,806.91

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Solution

The fourth proportional to 72,627.76, 100,245.36 and 40,806.91 is: 56,324.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,627.76 : 100,245.36 = 40,806.91 : x
  2. Step 2: Convert to fraction form
    72,627.76/100,245.36 = 40,806.91/x
  3. Step 3: Cross multiply
    72,627.76x = 100,245.36 × 40,806.91
  4. Step 4: Simplify right side
    72,627.76x = 4,090,703,383.44
  5. Step 5: Solve for x
    x = 4,090,703,383.44/72,627.76
  6. Step 6: Final answer
    x = 56,324.24

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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.