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Finding the Fourth Proportional to 57,160.97, 78,755.11 and 37,745.40

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Solution

The fourth proportional to 57,160.97, 78,755.11 and 37,745.40 is: 52,004.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,160.97 : 78,755.11 = 37,745.40 : x
  2. Step 2: Convert to fraction form
    57,160.97/78,755.11 = 37,745.40/x
  3. Step 3: Cross multiply
    57,160.97x = 78,755.11 × 37,745.40
  4. Step 4: Simplify right side
    57,160.97x = 2,972,643,048.50
  5. Step 5: Solve for x
    x = 2,972,643,048.50/57,160.97
  6. Step 6: Final answer
    x = 52,004.77

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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.