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Finding the Fourth Proportional to 53,605.44, 73,980 and 31,250.88

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Solution

The fourth proportional to 53,605.44, 73,980 and 31,250.88 is: 43,128.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,605.44 : 73,980 = 31,250.88 : x
  2. Step 2: Convert to fraction form
    53,605.44/73,980 = 31,250.88/x
  3. Step 3: Cross multiply
    53,605.44x = 73,980 × 31,250.88
  4. Step 4: Simplify right side
    53,605.44x = 2,311,940,102.40
  5. Step 5: Solve for x
    x = 2,311,940,102.40/53,605.44
  6. Step 6: Final answer
    x = 43,128.83

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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.