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Finding the Fourth Proportional to 56,110.59, 84,106.72 and 18,660.65

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Solution

The fourth proportional to 56,110.59, 84,106.72 and 18,660.65 is: 27,971.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,110.59 : 84,106.72 = 18,660.65 : x
  2. Step 2: Convert to fraction form
    56,110.59/84,106.72 = 18,660.65/x
  3. Step 3: Cross multiply
    56,110.59x = 84,106.72 × 18,660.65
  4. Step 4: Simplify right side
    56,110.59x = 1,569,485,667.36
  5. Step 5: Solve for x
    x = 1,569,485,667.36/56,110.59
  6. Step 6: Final answer
    x = 27,971.29

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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.