Home / 72,600.16-100,179.12-40,768.96

Finding the Fourth Proportional to 72,600.16, 100,179.12 and 40,768.96

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Solution

The fourth proportional to 72,600.16, 100,179.12 and 40,768.96 is: 56,256.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,600.16 : 100,179.12 = 40,768.96 : x
  2. Step 2: Convert to fraction form
    72,600.16/100,179.12 = 40,768.96/x
  3. Step 3: Cross multiply
    72,600.16x = 100,179.12 × 40,768.96
  4. Step 4: Simplify right side
    72,600.16x = 4,084,198,536.12
  5. Step 5: Solve for x
    x = 4,084,198,536.12/72,600.16
  6. Step 6: Final answer
    x = 56,256.05

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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.