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Finding the Fourth Proportional to 81,755.96, 122,567.80 and 25,567.16

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Solution

The fourth proportional to 81,755.96, 122,567.80 and 25,567.16 is: 38,330.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,755.96 : 122,567.80 = 25,567.16 : x
  2. Step 2: Convert to fraction form
    81,755.96/122,567.80 = 25,567.16/x
  3. Step 3: Cross multiply
    81,755.96x = 122,567.80 × 25,567.16
  4. Step 4: Simplify right side
    81,755.96x = 3,133,710,553.45
  5. Step 5: Solve for x
    x = 3,133,710,553.45/81,755.96
  6. Step 6: Final answer
    x = 38,330.06

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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.