Home / 72,266.28-99,727.57-40,435.19

Finding the Fourth Proportional to 72,266.28, 99,727.57 and 40,435.19

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Solution

The fourth proportional to 72,266.28, 99,727.57 and 40,435.19 is: 55,800.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,266.28 : 99,727.57 = 40,435.19 : x
  2. Step 2: Convert to fraction form
    72,266.28/99,727.57 = 40,435.19/x
  3. Step 3: Cross multiply
    72,266.28x = 99,727.57 × 40,435.19
  4. Step 4: Simplify right side
    72,266.28x = 4,032,503,241.19
  5. Step 5: Solve for x
    x = 4,032,503,241.19/72,266.28
  6. Step 6: Final answer
    x = 55,800.62

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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.