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Finding the Fourth Proportional to 62,550, 86,319 and 34,256.70

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Solution

The fourth proportional to 62,550, 86,319 and 34,256.70 is: 47,274.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,550 : 86,319 = 34,256.70 : x
  2. Step 2: Convert to fraction form
    62,550/86,319 = 34,256.70/x
  3. Step 3: Cross multiply
    62,550x = 86,319 × 34,256.70
  4. Step 4: Simplify right side
    62,550x = 2,957,004,087.30
  5. Step 5: Solve for x
    x = 2,957,004,087.30/62,550
  6. Step 6: Final answer
    x = 47,274.25

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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.