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Finding the Fourth Proportional to 101,010.88, 139,395.99 and 55,690.62

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Solution

The fourth proportional to 101,010.88, 139,395.99 and 55,690.62 is: 76,853.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,010.88 : 139,395.99 = 55,690.62 : x
  2. Step 2: Convert to fraction form
    101,010.88/139,395.99 = 55,690.62/x
  3. Step 3: Cross multiply
    101,010.88x = 139,395.99 × 55,690.62
  4. Step 4: Simplify right side
    101,010.88x = 7,763,049,265.56
  5. Step 5: Solve for x
    x = 7,763,049,265.56/101,010.88
  6. Step 6: Final answer
    x = 76,853.59

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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.