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Finding the Fourth Proportional to 88,392.45, 132,413.71 and 77,311.65

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Solution

The fourth proportional to 88,392.45, 132,413.71 and 77,311.65 is: 115,814.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,392.45 : 132,413.71 = 77,311.65 : x
  2. Step 2: Convert to fraction form
    88,392.45/132,413.71 = 77,311.65/x
  3. Step 3: Cross multiply
    88,392.45x = 132,413.71 × 77,311.65
  4. Step 4: Simplify right side
    88,392.45x = 10,237,122,402.72
  5. Step 5: Solve for x
    x = 10,237,122,402.72/88,392.45
  6. Step 6: Final answer
    x = 115,814.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.