Home / 75,467.16-104,145.18-47,189.40

Finding the Fourth Proportional to 75,467.16, 104,145.18 and 47,189.40

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Solution

The fourth proportional to 75,467.16, 104,145.18 and 47,189.40 is: 65,121.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,467.16 : 104,145.18 = 47,189.40 : x
  2. Step 2: Convert to fraction form
    75,467.16/104,145.18 = 47,189.40/x
  3. Step 3: Cross multiply
    75,467.16x = 104,145.18 × 47,189.40
  4. Step 4: Simplify right side
    75,467.16x = 4,914,548,557.09
  5. Step 5: Solve for x
    x = 4,914,548,557.09/75,467.16
  6. Step 6: Final answer
    x = 65,121.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.