Home / 73,716.16-110,578.02-21,126.10

Finding the Fourth Proportional to 73,716.16, 110,578.02 and 21,126.10

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Solution

The fourth proportional to 73,716.16, 110,578.02 and 21,126.10 is: 31,690.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,716.16 : 110,578.02 = 21,126.10 : x
  2. Step 2: Convert to fraction form
    73,716.16/110,578.02 = 21,126.10/x
  3. Step 3: Cross multiply
    73,716.16x = 110,578.02 × 21,126.10
  4. Step 4: Simplify right side
    73,716.16x = 2,336,082,308.32
  5. Step 5: Solve for x
    x = 2,336,082,308.32/73,716.16
  6. Step 6: Final answer
    x = 31,690.23

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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.