Home / 93,013.29-139,516.81-40,422.78

Finding the Fourth Proportional to 93,013.29, 139,516.81 and 40,422.78

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Solution

The fourth proportional to 93,013.29, 139,516.81 and 40,422.78 is: 60,632.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,013.29 : 139,516.81 = 40,422.78 : x
  2. Step 2: Convert to fraction form
    93,013.29/139,516.81 = 40,422.78/x
  3. Step 3: Cross multiply
    93,013.29x = 139,516.81 × 40,422.78
  4. Step 4: Simplify right side
    93,013.29x = 5,639,657,215.87
  5. Step 5: Solve for x
    x = 5,639,657,215.87/93,013.29
  6. Step 6: Final answer
    x = 60,632.81

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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.