Home / 76,623.62-105,755.16-47,956.60

Finding the Fourth Proportional to 76,623.62, 105,755.16 and 47,956.60

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Solution

The fourth proportional to 76,623.62, 105,755.16 and 47,956.60 is: 66,189.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,623.62 : 105,755.16 = 47,956.60 : x
  2. Step 2: Convert to fraction form
    76,623.62/105,755.16 = 47,956.60/x
  3. Step 3: Cross multiply
    76,623.62x = 105,755.16 × 47,956.60
  4. Step 4: Simplify right side
    76,623.62x = 5,071,657,906.06
  5. Step 5: Solve for x
    x = 5,071,657,906.06/76,623.62
  6. Step 6: Final answer
    x = 66,189.22

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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.