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Finding the Fourth Proportional to 81,333.86, 112,240.70 and 45,523.87

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Solution

The fourth proportional to 81,333.86, 112,240.70 and 45,523.87 is: 62,822.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,333.86 : 112,240.70 = 45,523.87 : x
  2. Step 2: Convert to fraction form
    81,333.86/112,240.70 = 45,523.87/x
  3. Step 3: Cross multiply
    81,333.86x = 112,240.70 × 45,523.87
  4. Step 4: Simplify right side
    81,333.86x = 5,109,631,035.51
  5. Step 5: Solve for x
    x = 5,109,631,035.51/81,333.86
  6. Step 6: Final answer
    x = 62,822.93

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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.