Home / 49,370.80-74,056.20-42,007.90

Finding the Fourth Proportional to 49,370.80, 74,056.20 and 42,007.90

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Solution

The fourth proportional to 49,370.80, 74,056.20 and 42,007.90 is: 63,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,370.80 : 74,056.20 = 42,007.90 : x
  2. Step 2: Convert to fraction form
    49,370.80/74,056.20 = 42,007.90/x
  3. Step 3: Cross multiply
    49,370.80x = 74,056.20 × 42,007.90
  4. Step 4: Simplify right side
    49,370.80x = 3,110,945,443.98
  5. Step 5: Solve for x
    x = 3,110,945,443.98/49,370.80
  6. Step 6: Final answer
    x = 63,011.85

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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.