Home / 77,730.48-107,273.64-43,742.34

Finding the Fourth Proportional to 77,730.48, 107,273.64 and 43,742.34

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Solution

The fourth proportional to 77,730.48, 107,273.64 and 43,742.34 is: 60,367.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,730.48 : 107,273.64 = 43,742.34 : x
  2. Step 2: Convert to fraction form
    77,730.48/107,273.64 = 43,742.34/x
  3. Step 3: Cross multiply
    77,730.48x = 107,273.64 × 43,742.34
  4. Step 4: Simplify right side
    77,730.48x = 4,692,400,033.92
  5. Step 5: Solve for x
    x = 4,692,400,033.92/77,730.48
  6. Step 6: Final answer
    x = 60,367.57

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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.