Home / 77,342.50-115,995.93-43,623.28

Finding the Fourth Proportional to 77,342.50, 115,995.93 and 43,623.28

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Solution

The fourth proportional to 77,342.50, 115,995.93 and 43,623.28 is: 65,424.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,342.50 : 115,995.93 = 43,623.28 : x
  2. Step 2: Convert to fraction form
    77,342.50/115,995.93 = 43,623.28/x
  3. Step 3: Cross multiply
    77,342.50x = 115,995.93 × 43,623.28
  4. Step 4: Simplify right side
    77,342.50x = 5,060,122,933.25
  5. Step 5: Solve for x
    x = 5,060,122,933.25/77,342.50
  6. Step 6: Final answer
    x = 65,424.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.