Home / 74,426.91-102,708.69-40,435.11

Finding the Fourth Proportional to 74,426.91, 102,708.69 and 40,435.11

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Solution

The fourth proportional to 74,426.91, 102,708.69 and 40,435.11 is: 55,800.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,426.91 : 102,708.69 = 40,435.11 : x
  2. Step 2: Convert to fraction form
    74,426.91/102,708.69 = 40,435.11/x
  3. Step 3: Cross multiply
    74,426.91x = 102,708.69 × 40,435.11
  4. Step 4: Simplify right side
    74,426.91x = 4,153,037,178.11
  5. Step 5: Solve for x
    x = 4,153,037,178.11/74,426.91
  6. Step 6: Final answer
    x = 55,800.21

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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.