Home / 46,081.05-69,121.09-21,114.01

Finding the Fourth Proportional to 46,081.05, 69,121.09 and 21,114.01

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Solution

The fourth proportional to 46,081.05, 69,121.09 and 21,114.01 is: 31,670.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,081.05 : 69,121.09 = 21,114.01 : x
  2. Step 2: Convert to fraction form
    46,081.05/69,121.09 = 21,114.01/x
  3. Step 3: Cross multiply
    46,081.05x = 69,121.09 × 21,114.01
  4. Step 4: Simplify right side
    46,081.05x = 1,459,423,385.47
  5. Step 5: Solve for x
    x = 1,459,423,385.47/46,081.05
  6. Step 6: Final answer
    x = 31,670.79

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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.