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Finding the Fourth Proportional to 36,768, 55,167.60 and 11,810.08

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Solution

The fourth proportional to 36,768, 55,167.60 and 11,810.08 is: 17,720.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,768 : 55,167.60 = 11,810.08 : x
  2. Step 2: Convert to fraction form
    36,768/55,167.60 = 11,810.08/x
  3. Step 3: Cross multiply
    36,768x = 55,167.60 × 11,810.08
  4. Step 4: Simplify right side
    36,768x = 651,533,769.41
  5. Step 5: Solve for x
    x = 651,533,769.41/36,768
  6. Step 6: Final answer
    x = 17,720.13

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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.