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Finding the Fourth Proportional to 77,611.69, 107,096.07 and 47,404.36

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Solution

The fourth proportional to 77,611.69, 107,096.07 and 47,404.36 is: 65,413.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,611.69 : 107,096.07 = 47,404.36 : x
  2. Step 2: Convert to fraction form
    77,611.69/107,096.07 = 47,404.36/x
  3. Step 3: Cross multiply
    77,611.69x = 107,096.07 × 47,404.36
  4. Step 4: Simplify right side
    77,611.69x = 5,076,820,656.87
  5. Step 5: Solve for x
    x = 5,076,820,656.87/77,611.69
  6. Step 6: Final answer
    x = 65,413.09

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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.