Home / 77,724.90-107,242.94-45,876.72

Finding the Fourth Proportional to 77,724.90, 107,242.94 and 45,876.72

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Solution

The fourth proportional to 77,724.90, 107,242.94 and 45,876.72 is: 63,299.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,724.90 : 107,242.94 = 45,876.72 : x
  2. Step 2: Convert to fraction form
    77,724.90/107,242.94 = 45,876.72/x
  3. Step 3: Cross multiply
    77,724.90x = 107,242.94 × 45,876.72
  4. Step 4: Simplify right side
    77,724.90x = 4,919,954,330.36
  5. Step 5: Solve for x
    x = 4,919,954,330.36/77,724.90
  6. Step 6: Final answer
    x = 63,299.59

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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.