Home / 78,825.24-108,594-54,908.64

Finding the Fourth Proportional to 78,825.24, 108,594 and 54,908.64

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Solution

The fourth proportional to 78,825.24, 108,594 and 54,908.64 is: 75,645.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,825.24 : 108,594 = 54,908.64 : x
  2. Step 2: Convert to fraction form
    78,825.24/108,594 = 54,908.64/x
  3. Step 3: Cross multiply
    78,825.24x = 108,594 × 54,908.64
  4. Step 4: Simplify right side
    78,825.24x = 5,962,748,852.16
  5. Step 5: Solve for x
    x = 5,962,748,852.16/78,825.24
  6. Step 6: Final answer
    x = 75,645.17

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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.