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Finding the Fourth Proportional to 85,262.82, 127,904.11 and 28,341.82

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Solution

The fourth proportional to 85,262.82, 127,904.11 and 28,341.82 is: 42,516.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,262.82 : 127,904.11 = 28,341.82 : x
  2. Step 2: Convert to fraction form
    85,262.82/127,904.11 = 28,341.82/x
  3. Step 3: Cross multiply
    85,262.82x = 127,904.11 × 28,341.82
  4. Step 4: Simplify right side
    85,262.82x = 3,625,035,262.88
  5. Step 5: Solve for x
    x = 3,625,035,262.88/85,262.82
  6. Step 6: Final answer
    x = 42,516.01

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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.