Home / 79,655.45-109,868.55-52,422.86

Finding the Fourth Proportional to 79,655.45, 109,868.55 and 52,422.86

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Solution

The fourth proportional to 79,655.45, 109,868.55 and 52,422.86 is: 72,306.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,655.45 : 109,868.55 = 52,422.86 : x
  2. Step 2: Convert to fraction form
    79,655.45/109,868.55 = 52,422.86/x
  3. Step 3: Cross multiply
    79,655.45x = 109,868.55 × 52,422.86
  4. Step 4: Simplify right side
    79,655.45x = 5,759,623,615.05
  5. Step 5: Solve for x
    x = 5,759,623,615.05/79,655.45
  6. Step 6: Final answer
    x = 72,306.71

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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.