Home / 77,600.40-107,139.24-59,662.32

Finding the Fourth Proportional to 77,600.40, 107,139.24 and 59,662.32

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Solution

The fourth proportional to 77,600.40, 107,139.24 and 59,662.32 is: 82,372.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,600.40 : 107,139.24 = 59,662.32 : x
  2. Step 2: Convert to fraction form
    77,600.40/107,139.24 = 59,662.32/x
  3. Step 3: Cross multiply
    77,600.40x = 107,139.24 × 59,662.32
  4. Step 4: Simplify right side
    77,600.40x = 6,392,175,621.44
  5. Step 5: Solve for x
    x = 6,392,175,621.44/77,600.40
  6. Step 6: Final answer
    x = 82,372.97

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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.