Home / 76,083.20-104,999.67-42,549.20

Finding the Fourth Proportional to 76,083.20, 104,999.67 and 42,549.20

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Solution

The fourth proportional to 76,083.20, 104,999.67 and 42,549.20 is: 58,720.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,083.20 : 104,999.67 = 42,549.20 : x
  2. Step 2: Convert to fraction form
    76,083.20/104,999.67 = 42,549.20/x
  3. Step 3: Cross multiply
    76,083.20x = 104,999.67 × 42,549.20
  4. Step 4: Simplify right side
    76,083.20x = 4,467,651,433.77
  5. Step 5: Solve for x
    x = 4,467,651,433.77/76,083.20
  6. Step 6: Final answer
    x = 58,720.61

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1.5x scale

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.