Home / 76,970.10-115,397.55-41,949.30

Finding the Fourth Proportional to 76,970.10, 115,397.55 and 41,949.30

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Solution

The fourth proportional to 76,970.10, 115,397.55 and 41,949.30 is: 62,892.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,970.10 : 115,397.55 = 41,949.30 : x
  2. Step 2: Convert to fraction form
    76,970.10/115,397.55 = 41,949.30/x
  3. Step 3: Cross multiply
    76,970.10x = 115,397.55 × 41,949.30
  4. Step 4: Simplify right side
    76,970.10x = 4,840,846,444.22
  5. Step 5: Solve for x
    x = 4,840,846,444.22/76,970.10
  6. Step 6: Final answer
    x = 62,892.56

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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.