Home / 72,461.82-99,987.68-40,195.96

Finding the Fourth Proportional to 72,461.82, 99,987.68 and 40,195.96

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Solution

The fourth proportional to 72,461.82, 99,987.68 and 40,195.96 is: 55,465.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,461.82 : 99,987.68 = 40,195.96 : x
  2. Step 2: Convert to fraction form
    72,461.82/99,987.68 = 40,195.96/x
  3. Step 3: Cross multiply
    72,461.82x = 99,987.68 × 40,195.96
  4. Step 4: Simplify right side
    72,461.82x = 4,019,100,785.77
  5. Step 5: Solve for x
    x = 4,019,100,785.77/72,461.82
  6. Step 6: Final answer
    x = 55,465.08

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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.