Home / 99,428.78-149,121.57-32,853.14

Finding the Fourth Proportional to 99,428.78, 149,121.57 and 32,853.14

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Solution

The fourth proportional to 99,428.78, 149,121.57 and 32,853.14 is: 49,272.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,428.78 : 149,121.57 = 32,853.14 : x
  2. Step 2: Convert to fraction form
    99,428.78/149,121.57 = 32,853.14/x
  3. Step 3: Cross multiply
    99,428.78x = 149,121.57 × 32,853.14
  4. Step 4: Simplify right side
    99,428.78x = 4,899,111,816.23
  5. Step 5: Solve for x
    x = 4,899,111,816.23/99,428.78
  6. Step 6: Final answer
    x = 49,272.57

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1.5x scale

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.