Home / 50,739.88-70,019.31-28,079.83

Finding the Fourth Proportional to 50,739.88, 70,019.31 and 28,079.83

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Solution

The fourth proportional to 50,739.88, 70,019.31 and 28,079.83 is: 38,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,739.88 : 70,019.31 = 28,079.83 : x
  2. Step 2: Convert to fraction form
    50,739.88/70,019.31 = 28,079.83/x
  3. Step 3: Cross multiply
    50,739.88x = 70,019.31 × 28,079.83
  4. Step 4: Simplify right side
    50,739.88x = 1,966,129,971.42
  5. Step 5: Solve for x
    x = 1,966,129,971.42/50,739.88
  6. Step 6: Final answer
    x = 38,749.20

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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.