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Finding the Fourth Proportional to 85,403.00, 117,887.59 and 51,413.07

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Solution

The fourth proportional to 85,403.00, 117,887.59 and 51,413.07 is: 70,968.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,403.00 : 117,887.59 = 51,413.07 : x
  2. Step 2: Convert to fraction form
    85,403.00/117,887.59 = 51,413.07/x
  3. Step 3: Cross multiply
    85,403.00x = 117,887.59 × 51,413.07
  4. Step 4: Simplify right side
    85,403.00x = 6,060,962,198.83
  5. Step 5: Solve for x
    x = 6,060,962,198.83/85,403.00
  6. Step 6: Final answer
    x = 70,968.96

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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.