Home / 72,062.60-99,446.13-40,231.22

Finding the Fourth Proportional to 72,062.60, 99,446.13 and 40,231.22

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Solution

The fourth proportional to 72,062.60, 99,446.13 and 40,231.22 is: 55,518.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,062.60 : 99,446.13 = 40,231.22 : x
  2. Step 2: Convert to fraction form
    72,062.60/99,446.13 = 40,231.22/x
  3. Step 3: Cross multiply
    72,062.60x = 99,446.13 × 40,231.22
  4. Step 4: Simplify right side
    72,062.60x = 4,000,839,134.18
  5. Step 5: Solve for x
    x = 4,000,839,134.18/72,062.60
  6. Step 6: Final answer
    x = 55,518.94

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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.