Home / 85,419.07-128,156.00-41,049.04

Finding the Fourth Proportional to 85,419.07, 128,156.00 and 41,049.04

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Solution

The fourth proportional to 85,419.07, 128,156.00 and 41,049.04 is: 61,586.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,419.07 : 128,156.00 = 41,049.04 : x
  2. Step 2: Convert to fraction form
    85,419.07/128,156.00 = 41,049.04/x
  3. Step 3: Cross multiply
    85,419.07x = 128,156.00 × 41,049.04
  4. Step 4: Simplify right side
    85,419.07x = 5,260,680,232.08
  5. Step 5: Solve for x
    x = 5,260,680,232.08/85,419.07
  6. Step 6: Final answer
    x = 61,586.72

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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.