Home / 99,631.10-149,486.70-40,471.40

Finding the Fourth Proportional to 99,631.10, 149,486.70 and 40,471.40

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Solution

The fourth proportional to 99,631.10, 149,486.70 and 40,471.40 is: 60,723.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,631.10 : 149,486.70 = 40,471.40 : x
  2. Step 2: Convert to fraction form
    99,631.10/149,486.70 = 40,471.40/x
  3. Step 3: Cross multiply
    99,631.10x = 149,486.70 × 40,471.40
  4. Step 4: Simplify right side
    99,631.10x = 6,049,936,030.38
  5. Step 5: Solve for x
    x = 6,049,936,030.38/99,631.10
  6. Step 6: Final answer
    x = 60,723.37

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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.