Home / 50,308.88-75,479.11-20,740.64

Finding the Fourth Proportional to 50,308.88, 75,479.11 and 20,740.64

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Solution

The fourth proportional to 50,308.88, 75,479.11 and 20,740.64 is: 31,117.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,308.88 : 75,479.11 = 20,740.64 : x
  2. Step 2: Convert to fraction form
    50,308.88/75,479.11 = 20,740.64/x
  3. Step 3: Cross multiply
    50,308.88x = 75,479.11 × 20,740.64
  4. Step 4: Simplify right side
    50,308.88x = 1,565,485,048.03
  5. Step 5: Solve for x
    x = 1,565,485,048.03/50,308.88
  6. Step 6: Final answer
    x = 31,117.47

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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.