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Finding the Fourth Proportional to 81,599.50, 122,400.06 and 29,011.06

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Solution

The fourth proportional to 81,599.50, 122,400.06 and 29,011.06 is: 43,516.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,599.50 : 122,400.06 = 29,011.06 : x
  2. Step 2: Convert to fraction form
    81,599.50/122,400.06 = 29,011.06/x
  3. Step 3: Cross multiply
    81,599.50x = 122,400.06 × 29,011.06
  4. Step 4: Simplify right side
    81,599.50x = 3,550,955,484.66
  5. Step 5: Solve for x
    x = 3,550,955,484.66/81,599.50
  6. Step 6: Final answer
    x = 43,516.88

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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.