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Finding the Fourth Proportional to 62,615.53, 86,418.29 and 38,749.89

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Solution

The fourth proportional to 62,615.53, 86,418.29 and 38,749.89 is: 53,480.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,615.53 : 86,418.29 = 38,749.89 : x
  2. Step 2: Convert to fraction form
    62,615.53/86,418.29 = 38,749.89/x
  3. Step 3: Cross multiply
    62,615.53x = 86,418.29 × 38,749.89
  4. Step 4: Simplify right side
    62,615.53x = 3,348,699,231.49
  5. Step 5: Solve for x
    x = 3,348,699,231.49/62,615.53
  6. Step 6: Final answer
    x = 53,480.33

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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.