Home / 90,743.50-125,226.03-50,999.50

Finding the Fourth Proportional to 90,743.50, 125,226.03 and 50,999.50

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Solution

The fourth proportional to 90,743.50, 125,226.03 and 50,999.50 is: 70,379.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,743.50 : 125,226.03 = 50,999.50 : x
  2. Step 2: Convert to fraction form
    90,743.50/125,226.03 = 50,999.50/x
  3. Step 3: Cross multiply
    90,743.50x = 125,226.03 × 50,999.50
  4. Step 4: Simplify right side
    90,743.50x = 6,386,464,916.99
  5. Step 5: Solve for x
    x = 6,386,464,916.99/90,743.50
  6. Step 6: Final answer
    x = 70,379.31

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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.