Home / 81,401.87-122,004.38-41,937.45

Finding the Fourth Proportional to 81,401.87, 122,004.38 and 41,937.45

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Solution

The fourth proportional to 81,401.87, 122,004.38 and 41,937.45 is: 62,855.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,401.87 : 122,004.38 = 41,937.45 : x
  2. Step 2: Convert to fraction form
    81,401.87/122,004.38 = 41,937.45/x
  3. Step 3: Cross multiply
    81,401.87x = 122,004.38 × 41,937.45
  4. Step 4: Simplify right side
    81,401.87x = 5,116,552,690.87
  5. Step 5: Solve for x
    x = 5,116,552,690.87/81,401.87
  6. Step 6: Final answer
    x = 62,855.47

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1.5x scale

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.