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Finding the Fourth Proportional to 93,146.56, 128,522.32 and 55,413.44

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Solution

The fourth proportional to 93,146.56, 128,522.32 and 55,413.44 is: 76,458.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,146.56 : 128,522.32 = 55,413.44 : x
  2. Step 2: Convert to fraction form
    93,146.56/128,522.32 = 55,413.44/x
  3. Step 3: Cross multiply
    93,146.56x = 128,522.32 × 55,413.44
  4. Step 4: Simplify right side
    93,146.56x = 7,121,863,867.98
  5. Step 5: Solve for x
    x = 7,121,863,867.98/93,146.56
  6. Step 6: Final answer
    x = 76,458.69

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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.