Home / 50,987.61-76,471.70-19,818.81

Finding the Fourth Proportional to 50,987.61, 76,471.70 and 19,818.81

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Solution

The fourth proportional to 50,987.61, 76,471.70 and 19,818.81 is: 29,724.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,987.61 : 76,471.70 = 19,818.81 : x
  2. Step 2: Convert to fraction form
    50,987.61/76,471.70 = 19,818.81/x
  3. Step 3: Cross multiply
    50,987.61x = 76,471.70 × 19,818.81
  4. Step 4: Simplify right side
    50,987.61x = 1,515,577,993.58
  5. Step 5: Solve for x
    x = 1,515,577,993.58/50,987.61
  6. Step 6: Final answer
    x = 29,724.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.