Home / 58,512.51-87,716.39-21,063.78

Finding the Fourth Proportional to 58,512.51, 87,716.39 and 21,063.78

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Solution

The fourth proportional to 58,512.51, 87,716.39 and 21,063.78 is: 31,576.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,512.51 : 87,716.39 = 21,063.78 : x
  2. Step 2: Convert to fraction form
    58,512.51/87,716.39 = 21,063.78/x
  3. Step 3: Cross multiply
    58,512.51x = 87,716.39 × 21,063.78
  4. Step 4: Simplify right side
    58,512.51x = 1,847,638,636.04
  5. Step 5: Solve for x
    x = 1,847,638,636.04/58,512.51
  6. Step 6: Final answer
    x = 31,576.81

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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.