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Finding the Fourth Proportional to 77,374.33, 106,823.16 and 50,561.71

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Solution

The fourth proportional to 77,374.33, 106,823.16 and 50,561.71 is: 69,805.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,374.33 : 106,823.16 = 50,561.71 : x
  2. Step 2: Convert to fraction form
    77,374.33/106,823.16 = 50,561.71/x
  3. Step 3: Cross multiply
    77,374.33x = 106,823.16 × 50,561.71
  4. Step 4: Simplify right side
    77,374.33x = 5,401,161,370.15
  5. Step 5: Solve for x
    x = 5,401,161,370.15/77,374.33
  6. Step 6: Final answer
    x = 69,805.60

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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.