Home / 78,240.48-117,318.24-27,614.16

Finding the Fourth Proportional to 78,240.48, 117,318.24 and 27,614.16

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Solution

The fourth proportional to 78,240.48, 117,318.24 and 27,614.16 is: 41,406.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,240.48 : 117,318.24 = 27,614.16 : x
  2. Step 2: Convert to fraction form
    78,240.48/117,318.24 = 27,614.16/x
  3. Step 3: Cross multiply
    78,240.48x = 117,318.24 × 27,614.16
  4. Step 4: Simplify right side
    78,240.48x = 3,239,644,650.28
  5. Step 5: Solve for x
    x = 3,239,644,650.28/78,240.48
  6. Step 6: Final answer
    x = 41,406.25

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1.5x scale

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.