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Finding the Fourth Proportional to 68,048.47, 102,064.56 and 18,132.22

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Solution

The fourth proportional to 68,048.47, 102,064.56 and 18,132.22 is: 27,196.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,048.47 : 102,064.56 = 18,132.22 : x
  2. Step 2: Convert to fraction form
    68,048.47/102,064.56 = 18,132.22/x
  3. Step 3: Cross multiply
    68,048.47x = 102,064.56 × 18,132.22
  4. Step 4: Simplify right side
    68,048.47x = 1,850,657,056.12
  5. Step 5: Solve for x
    x = 1,850,657,056.12/68,048.47
  6. Step 6: Final answer
    x = 27,196.16

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1.5x scale

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.