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Finding the Fourth Proportional to 56,085.49, 84,110.03 and 18,635.51

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Solution

The fourth proportional to 56,085.49, 84,110.03 and 18,635.51 is: 27,947.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,085.49 : 84,110.03 = 18,635.51 : x
  2. Step 2: Convert to fraction form
    56,085.49/84,110.03 = 18,635.51/x
  3. Step 3: Cross multiply
    56,085.49x = 84,110.03 × 18,635.51
  4. Step 4: Simplify right side
    56,085.49x = 1,567,432,979.37
  5. Step 5: Solve for x
    x = 1,567,432,979.37/56,085.49
  6. Step 6: Final answer
    x = 27,947.21

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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.