Home / 77,848.80-107,409.11-43,845.40

Finding the Fourth Proportional to 77,848.80, 107,409.11 and 43,845.40

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Solution

The fourth proportional to 77,848.80, 107,409.11 and 43,845.40 is: 60,494.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,848.80 : 107,409.11 = 43,845.40 : x
  2. Step 2: Convert to fraction form
    77,848.80/107,409.11 = 43,845.40/x
  3. Step 3: Cross multiply
    77,848.80x = 107,409.11 × 43,845.40
  4. Step 4: Simplify right side
    77,848.80x = 4,709,395,676.57
  5. Step 5: Solve for x
    x = 4,709,395,676.57/77,848.80
  6. Step 6: Final answer
    x = 60,494.14

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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.