Home / 77,569.54-107,038.20-43,581.94

Finding the Fourth Proportional to 77,569.54, 107,038.20 and 43,581.94

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Solution

The fourth proportional to 77,569.54, 107,038.20 and 43,581.94 is: 60,138.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,569.54 : 107,038.20 = 43,581.94 : x
  2. Step 2: Convert to fraction form
    77,569.54/107,038.20 = 43,581.94/x
  3. Step 3: Cross multiply
    77,569.54x = 107,038.20 × 43,581.94
  4. Step 4: Simplify right side
    77,569.54x = 4,664,932,410.11
  5. Step 5: Solve for x
    x = 4,664,932,410.11/77,569.54
  6. Step 6: Final answer
    x = 60,138.71

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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.