Home / 99,621.31-149,350.53-46,346.49

Finding the Fourth Proportional to 99,621.31, 149,350.53 and 46,346.49

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Solution

The fourth proportional to 99,621.31, 149,350.53 and 46,346.49 is: 69,481.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,621.31 : 149,350.53 = 46,346.49 : x
  2. Step 2: Convert to fraction form
    99,621.31/149,350.53 = 46,346.49/x
  3. Step 3: Cross multiply
    99,621.31x = 149,350.53 × 46,346.49
  4. Step 4: Simplify right side
    99,621.31x = 6,921,873,405.20
  5. Step 5: Solve for x
    x = 6,921,873,405.20/99,621.31
  6. Step 6: Final answer
    x = 69,481.86

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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.