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Finding the Fourth Proportional to 74,173.78, 111,259.53 and 18,014.32

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Solution

The fourth proportional to 74,173.78, 111,259.53 and 18,014.32 is: 27,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,173.78 : 111,259.53 = 18,014.32 : x
  2. Step 2: Convert to fraction form
    74,173.78/111,259.53 = 18,014.32/x
  3. Step 3: Cross multiply
    74,173.78x = 111,259.53 × 18,014.32
  4. Step 4: Simplify right side
    74,173.78x = 2,004,264,776.47
  5. Step 5: Solve for x
    x = 2,004,264,776.47/74,173.78
  6. Step 6: Final answer
    x = 27,021.20

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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.