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Finding the Fourth Proportional to 81,966.70, 122,950.05 and 26,562.70

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Solution

The fourth proportional to 81,966.70, 122,950.05 and 26,562.70 is: 39,844.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,966.70 : 122,950.05 = 26,562.70 : x
  2. Step 2: Convert to fraction form
    81,966.70/122,950.05 = 26,562.70/x
  3. Step 3: Cross multiply
    81,966.70x = 122,950.05 × 26,562.70
  4. Step 4: Simplify right side
    81,966.70x = 3,265,885,293.14
  5. Step 5: Solve for x
    x = 3,265,885,293.14/81,966.70
  6. Step 6: Final answer
    x = 39,844.05

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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.