Home / 77,569.31-107,039.34-43,575.95

Finding the Fourth Proportional to 77,569.31, 107,039.34 and 43,575.95

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Solution

The fourth proportional to 77,569.31, 107,039.34 and 43,575.95 is: 60,131.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,569.31 : 107,039.34 = 43,575.95 : x
  2. Step 2: Convert to fraction form
    77,569.31/107,039.34 = 43,575.95/x
  3. Step 3: Cross multiply
    77,569.31x = 107,039.34 × 43,575.95
  4. Step 4: Simplify right side
    77,569.31x = 4,664,340,927.87
  5. Step 5: Solve for x
    x = 4,664,340,927.87/77,569.31
  6. Step 6: Final answer
    x = 60,131.27

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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.