Home / 66,268.24-99,382.20-18,887.20

Finding the Fourth Proportional to 66,268.24, 99,382.20 and 18,887.20

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Solution

The fourth proportional to 66,268.24, 99,382.20 and 18,887.20 is: 28,325.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,268.24 : 99,382.20 = 18,887.20 : x
  2. Step 2: Convert to fraction form
    66,268.24/99,382.20 = 18,887.20/x
  3. Step 3: Cross multiply
    66,268.24x = 99,382.20 × 18,887.20
  4. Step 4: Simplify right side
    66,268.24x = 1,877,051,487.84
  5. Step 5: Solve for x
    x = 1,877,051,487.84/66,268.24
  6. Step 6: Final answer
    x = 28,325.05

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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.