Home / 77,985.46-107,620.98-43,993.84

Finding the Fourth Proportional to 77,985.46, 107,620.98 and 43,993.84

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Solution

The fourth proportional to 77,985.46, 107,620.98 and 43,993.84 is: 60,712.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,985.46 : 107,620.98 = 43,993.84 : x
  2. Step 2: Convert to fraction form
    77,985.46/107,620.98 = 43,993.84/x
  3. Step 3: Cross multiply
    77,985.46x = 107,620.98 × 43,993.84
  4. Step 4: Simplify right side
    77,985.46x = 4,734,660,707.71
  5. Step 5: Solve for x
    x = 4,734,660,707.71/77,985.46
  6. Step 6: Final answer
    x = 60,712.09

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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.