Home / 78,905.30-108,887.62-43,095.45

Finding the Fourth Proportional to 78,905.30, 108,887.62 and 43,095.45

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Solution

The fourth proportional to 78,905.30, 108,887.62 and 43,095.45 is: 59,470.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,905.30 : 108,887.62 = 43,095.45 : x
  2. Step 2: Convert to fraction form
    78,905.30/108,887.62 = 43,095.45/x
  3. Step 3: Cross multiply
    78,905.30x = 108,887.62 × 43,095.45
  4. Step 4: Simplify right side
    78,905.30x = 4,692,560,438.89
  5. Step 5: Solve for x
    x = 4,692,560,438.89/78,905.30
  6. Step 6: Final answer
    x = 59,470.79

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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.