Home / 77,965.70-107,588.24-43,972.15

Finding the Fourth Proportional to 77,965.70, 107,588.24 and 43,972.15

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Solution

The fourth proportional to 77,965.70, 107,588.24 and 43,972.15 is: 60,679.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,965.70 : 107,588.24 = 43,972.15 : x
  2. Step 2: Convert to fraction form
    77,965.70/107,588.24 = 43,972.15/x
  3. Step 3: Cross multiply
    77,965.70x = 107,588.24 × 43,972.15
  4. Step 4: Simplify right side
    77,965.70x = 4,730,886,211.44
  5. Step 5: Solve for x
    x = 4,730,886,211.44/77,965.70
  6. Step 6: Final answer
    x = 60,679.07

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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.