Home / 93,015.29-139,519.80-40,424.78

Finding the Fourth Proportional to 93,015.29, 139,519.80 and 40,424.78

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Solution

The fourth proportional to 93,015.29, 139,519.80 and 40,424.78 is: 60,635.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,015.29 : 139,519.80 = 40,424.78 : x
  2. Step 2: Convert to fraction form
    93,015.29/139,519.80 = 40,424.78/x
  3. Step 3: Cross multiply
    93,015.29x = 139,519.80 × 40,424.78
  4. Step 4: Simplify right side
    93,015.29x = 5,640,057,220.64
  5. Step 5: Solve for x
    x = 5,640,057,220.64/93,015.29
  6. Step 6: Final answer
    x = 60,635.81

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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.