Home / 99,629.10-149,528.70-40,507.20

Finding the Fourth Proportional to 99,629.10, 149,528.70 and 40,507.20

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Solution

The fourth proportional to 99,629.10, 149,528.70 and 40,507.20 is: 60,795.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,629.10 : 149,528.70 = 40,507.20 : x
  2. Step 2: Convert to fraction form
    99,629.10/149,528.70 = 40,507.20/x
  3. Step 3: Cross multiply
    99,629.10x = 149,528.70 × 40,507.20
  4. Step 4: Simplify right side
    99,629.10x = 6,056,988,956.64
  5. Step 5: Solve for x
    x = 6,056,988,956.64/99,629.10
  6. Step 6: Final answer
    x = 60,795.38

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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.