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Finding the Fourth Proportional to 86,487, 119,352.18 and 48,249.02

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Solution

The fourth proportional to 86,487, 119,352.18 and 48,249.02 is: 66,583.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,487 : 119,352.18 = 48,249.02 : x
  2. Step 2: Convert to fraction form
    86,487/119,352.18 = 48,249.02/x
  3. Step 3: Cross multiply
    86,487x = 119,352.18 × 48,249.02
  4. Step 4: Simplify right side
    86,487x = 5,758,625,123.10
  5. Step 5: Solve for x
    x = 5,758,625,123.10/86,487
  6. Step 6: Final answer
    x = 66,583.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.