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Finding the Fourth Proportional to 62,829, 86,704.20 and 35,971.92

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Solution

The fourth proportional to 62,829, 86,704.20 and 35,971.92 is: 49,641.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,829 : 86,704.20 = 35,971.92 : x
  2. Step 2: Convert to fraction form
    62,829/86,704.20 = 35,971.92/x
  3. Step 3: Cross multiply
    62,829x = 86,704.20 × 35,971.92
  4. Step 4: Simplify right side
    62,829x = 3,118,916,546.06
  5. Step 5: Solve for x
    x = 3,118,916,546.06/62,829
  6. Step 6: Final answer
    x = 49,641.35

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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.