Home / 85,418.18-128,150.67-41,082.02

Finding the Fourth Proportional to 85,418.18, 128,150.67 and 41,082.02

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Solution

The fourth proportional to 85,418.18, 128,150.67 and 41,082.02 is: 61,634.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,418.18 : 128,150.67 = 41,082.02 : x
  2. Step 2: Convert to fraction form
    85,418.18/128,150.67 = 41,082.02/x
  3. Step 3: Cross multiply
    85,418.18x = 128,150.67 × 41,082.02
  4. Step 4: Simplify right side
    85,418.18x = 5,264,688,387.95
  5. Step 5: Solve for x
    x = 5,264,688,387.95/85,418.18
  6. Step 6: Final answer
    x = 61,634.28

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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.