Home / 72,286.13-99,765.36-41,653.28

Finding the Fourth Proportional to 72,286.13, 99,765.36 and 41,653.28

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Solution

The fourth proportional to 72,286.13, 99,765.36 and 41,653.28 is: 57,487.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,286.13 : 99,765.36 = 41,653.28 : x
  2. Step 2: Convert to fraction form
    72,286.13/99,765.36 = 41,653.28/x
  3. Step 3: Cross multiply
    72,286.13x = 99,765.36 × 41,653.28
  4. Step 4: Simplify right side
    72,286.13x = 4,155,553,975.55
  5. Step 5: Solve for x
    x = 4,155,553,975.55/72,286.13
  6. Step 6: Final answer
    x = 57,487.57

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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.