Home / 77,549.12-116,324.27-42,469.64

Finding the Fourth Proportional to 77,549.12, 116,324.27 and 42,469.64

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Solution

The fourth proportional to 77,549.12, 116,324.27 and 42,469.64 is: 63,704.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,549.12 : 116,324.27 = 42,469.64 : x
  2. Step 2: Convert to fraction form
    77,549.12/116,324.27 = 42,469.64/x
  3. Step 3: Cross multiply
    77,549.12x = 116,324.27 × 42,469.64
  4. Step 4: Simplify right side
    77,549.12x = 4,940,249,076.19
  5. Step 5: Solve for x
    x = 4,940,249,076.19/77,549.12
  6. Step 6: Final answer
    x = 63,704.78

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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.