Home / 49,423.80-74,135.70-47,674.20

Finding the Fourth Proportional to 49,423.80, 74,135.70 and 47,674.20

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Solution

The fourth proportional to 49,423.80, 74,135.70 and 47,674.20 is: 71,511.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,423.80 : 74,135.70 = 47,674.20 : x
  2. Step 2: Convert to fraction form
    49,423.80/74,135.70 = 47,674.20/x
  3. Step 3: Cross multiply
    49,423.80x = 74,135.70 × 47,674.20
  4. Step 4: Simplify right side
    49,423.80x = 3,534,360,188.94
  5. Step 5: Solve for x
    x = 3,534,360,188.94/49,423.80
  6. Step 6: Final answer
    x = 71,511.30

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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.