Home / 77,609.40-107,141.76-52,249.14

Finding the Fourth Proportional to 77,609.40, 107,141.76 and 52,249.14

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Solution

The fourth proportional to 77,609.40, 107,141.76 and 52,249.14 is: 72,131.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,609.40 : 107,141.76 = 52,249.14 : x
  2. Step 2: Convert to fraction form
    77,609.40/107,141.76 = 52,249.14/x
  3. Step 3: Cross multiply
    77,609.40x = 107,141.76 × 52,249.14
  4. Step 4: Simplify right side
    77,609.40x = 5,598,064,818.09
  5. Step 5: Solve for x
    x = 5,598,064,818.09/77,609.40
  6. Step 6: Final answer
    x = 72,131.27

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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.