Home / 74,045.28-102,184.92-40,511.28

Finding the Fourth Proportional to 74,045.28, 102,184.92 and 40,511.28

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Solution

The fourth proportional to 74,045.28, 102,184.92 and 40,511.28 is: 55,906.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,045.28 : 102,184.92 = 40,511.28 : x
  2. Step 2: Convert to fraction form
    74,045.28/102,184.92 = 40,511.28/x
  3. Step 3: Cross multiply
    74,045.28x = 102,184.92 × 40,511.28
  4. Step 4: Simplify right side
    74,045.28x = 4,139,641,905.90
  5. Step 5: Solve for x
    x = 4,139,641,905.90/74,045.28
  6. Step 6: Final answer
    x = 55,906.90

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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.