Home / 77,412.72-116,119.26-21,253.59

Finding the Fourth Proportional to 77,412.72, 116,119.26 and 21,253.59

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Solution

The fourth proportional to 77,412.72, 116,119.26 and 21,253.59 is: 31,880.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,412.72 : 116,119.26 = 21,253.59 : x
  2. Step 2: Convert to fraction form
    77,412.72/116,119.26 = 21,253.59/x
  3. Step 3: Cross multiply
    77,412.72x = 116,119.26 × 21,253.59
  4. Step 4: Simplify right side
    77,412.72x = 2,467,951,143.14
  5. Step 5: Solve for x
    x = 2,467,951,143.14/77,412.72
  6. Step 6: Final answer
    x = 31,880.43

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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.