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Finding the Fourth Proportional to 86,625.56, 129,884.88 and 34,011.20

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Solution

The fourth proportional to 86,625.56, 129,884.88 and 34,011.20 is: 50,995.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,625.56 : 129,884.88 = 34,011.20 : x
  2. Step 2: Convert to fraction form
    86,625.56/129,884.88 = 34,011.20/x
  3. Step 3: Cross multiply
    86,625.56x = 129,884.88 × 34,011.20
  4. Step 4: Simplify right side
    86,625.56x = 4,417,540,630.66
  5. Step 5: Solve for x
    x = 4,417,540,630.66/86,625.56
  6. Step 6: Final answer
    x = 50,995.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.