Home / 74,110.10-102,271.83-40,118.42

Finding the Fourth Proportional to 74,110.10, 102,271.83 and 40,118.42

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Solution

The fourth proportional to 74,110.10, 102,271.83 and 40,118.42 is: 55,363.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,110.10 : 102,271.83 = 40,118.42 : x
  2. Step 2: Convert to fraction form
    74,110.10/102,271.83 = 40,118.42/x
  3. Step 3: Cross multiply
    74,110.10x = 102,271.83 × 40,118.42
  4. Step 4: Simplify right side
    74,110.10x = 4,102,984,230.11
  5. Step 5: Solve for x
    x = 4,102,984,230.11/74,110.10
  6. Step 6: Final answer
    x = 55,363.36

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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.