Home / 77,729.22-107,261.82-45,886.50

Finding the Fourth Proportional to 77,729.22, 107,261.82 and 45,886.50

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Solution

The fourth proportional to 77,729.22, 107,261.82 and 45,886.50 is: 63,320.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,729.22 : 107,261.82 = 45,886.50 : x
  2. Step 2: Convert to fraction form
    77,729.22/107,261.82 = 45,886.50/x
  3. Step 3: Cross multiply
    77,729.22x = 107,261.82 × 45,886.50
  4. Step 4: Simplify right side
    77,729.22x = 4,921,869,503.43
  5. Step 5: Solve for x
    x = 4,921,869,503.43/77,729.22
  6. Step 6: Final answer
    x = 63,320.71

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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.