Home / 99,665.28-149,552.59-40,485.06

Finding the Fourth Proportional to 99,665.28, 149,552.59 and 40,485.06

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Solution

The fourth proportional to 99,665.28, 149,552.59 and 40,485.06 is: 60,749.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,665.28 : 149,552.59 = 40,485.06 : x
  2. Step 2: Convert to fraction form
    99,665.28/149,552.59 = 40,485.06/x
  3. Step 3: Cross multiply
    99,665.28x = 149,552.59 × 40,485.06
  4. Step 4: Simplify right side
    99,665.28x = 6,054,645,579.31
  5. Step 5: Solve for x
    x = 6,054,645,579.31/99,665.28
  6. Step 6: Final answer
    x = 60,749.80

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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.