Home / 57,201.64-78,936.87-31,707.55

Finding the Fourth Proportional to 57,201.64, 78,936.87 and 31,707.55

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Solution

The fourth proportional to 57,201.64, 78,936.87 and 31,707.55 is: 43,755.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,201.64 : 78,936.87 = 31,707.55 : x
  2. Step 2: Convert to fraction form
    57,201.64/78,936.87 = 31,707.55/x
  3. Step 3: Cross multiply
    57,201.64x = 78,936.87 × 31,707.55
  4. Step 4: Simplify right side
    57,201.64x = 2,502,894,752.37
  5. Step 5: Solve for x
    x = 2,502,894,752.37/57,201.64
  6. Step 6: Final answer
    x = 43,755.65

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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.