Home / 78,208.07-107,926.86-43,752.88

Finding the Fourth Proportional to 78,208.07, 107,926.86 and 43,752.88

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Solution

The fourth proportional to 78,208.07, 107,926.86 and 43,752.88 is: 60,378.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,208.07 : 107,926.86 = 43,752.88 : x
  2. Step 2: Convert to fraction form
    78,208.07/107,926.86 = 43,752.88/x
  3. Step 3: Cross multiply
    78,208.07x = 107,926.86 × 43,752.88
  4. Step 4: Simplify right side
    78,208.07x = 4,722,110,954.36
  5. Step 5: Solve for x
    x = 4,722,110,954.36/78,208.07
  6. Step 6: Final answer
    x = 60,378.82

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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.