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Finding the Fourth Proportional to 85,579.59, 128,262.47 and 41,194.47

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Solution

The fourth proportional to 85,579.59, 128,262.47 and 41,194.47 is: 61,740.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,579.59 : 128,262.47 = 41,194.47 : x
  2. Step 2: Convert to fraction form
    85,579.59/128,262.47 = 41,194.47/x
  3. Step 3: Cross multiply
    85,579.59x = 128,262.47 × 41,194.47
  4. Step 4: Simplify right side
    85,579.59x = 5,283,704,266.57
  5. Step 5: Solve for x
    x = 5,283,704,266.57/85,579.59
  6. Step 6: Final answer
    x = 61,740.24

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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.