Home / 50,309.01-75,479.31-20,740.77

Finding the Fourth Proportional to 50,309.01, 75,479.31 and 20,740.77

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Solution

The fourth proportional to 50,309.01, 75,479.31 and 20,740.77 is: 31,117.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,309.01 : 75,479.31 = 20,740.77 : x
  2. Step 2: Convert to fraction form
    50,309.01/75,479.31 = 20,740.77/x
  3. Step 3: Cross multiply
    50,309.01x = 75,479.31 × 20,740.77
  4. Step 4: Simplify right side
    50,309.01x = 1,565,499,008.47
  5. Step 5: Solve for x
    x = 1,565,499,008.47/50,309.01
  6. Step 6: Final answer
    x = 31,117.67

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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.