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Finding the Fourth Proportional to 79,850.88, 110,079.70 and 62,825.76

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Solution

The fourth proportional to 79,850.88, 110,079.70 and 62,825.76 is: 86,609.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,850.88 : 110,079.70 = 62,825.76 : x
  2. Step 2: Convert to fraction form
    79,850.88/110,079.70 = 62,825.76/x
  3. Step 3: Cross multiply
    79,850.88x = 110,079.70 × 62,825.76
  4. Step 4: Simplify right side
    79,850.88x = 6,915,840,813.07
  5. Step 5: Solve for x
    x = 6,915,840,813.07/79,850.88
  6. Step 6: Final answer
    x = 86,609.45

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1.5x scale

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.