Home / 72,204.48-99,651.47-40,375.13

Finding the Fourth Proportional to 72,204.48, 99,651.47 and 40,375.13

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Solution

The fourth proportional to 72,204.48, 99,651.47 and 40,375.13 is: 55,722.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,204.48 : 99,651.47 = 40,375.13 : x
  2. Step 2: Convert to fraction form
    72,204.48/99,651.47 = 40,375.13/x
  3. Step 3: Cross multiply
    72,204.48x = 99,651.47 × 40,375.13
  4. Step 4: Simplify right side
    72,204.48x = 4,023,440,355.81
  5. Step 5: Solve for x
    x = 4,023,440,355.81/72,204.48
  6. Step 6: Final answer
    x = 55,722.86

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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.