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Finding the Fourth Proportional to 97,393.88, 134,413.88 and 57,141.54

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Solution

The fourth proportional to 97,393.88, 134,413.88 and 57,141.54 is: 78,861.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,393.88 : 134,413.88 = 57,141.54 : x
  2. Step 2: Convert to fraction form
    97,393.88/134,413.88 = 57,141.54/x
  3. Step 3: Cross multiply
    97,393.88x = 134,413.88 × 57,141.54
  4. Step 4: Simplify right side
    97,393.88x = 7,680,615,814.87
  5. Step 5: Solve for x
    x = 7,680,615,814.87/97,393.88
  6. Step 6: Final answer
    x = 78,861.38

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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.