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Finding the Fourth Proportional to 61,708, 85,157.48 and 33,413.76

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Solution

The fourth proportional to 61,708, 85,157.48 and 33,413.76 is: 46,111.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,708 : 85,157.48 = 33,413.76 : x
  2. Step 2: Convert to fraction form
    61,708/85,157.48 = 33,413.76/x
  3. Step 3: Cross multiply
    61,708x = 85,157.48 × 33,413.76
  4. Step 4: Simplify right side
    61,708x = 2,845,431,598.92
  5. Step 5: Solve for x
    x = 2,845,431,598.92/61,708
  6. Step 6: Final answer
    x = 46,111.23

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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.