Home / 50,974.96-70,343-28,315.40

Finding the Fourth Proportional to 50,974.96, 70,343 and 28,315.40

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Solution

The fourth proportional to 50,974.96, 70,343 and 28,315.40 is: 39,073.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,974.96 : 70,343 = 28,315.40 : x
  2. Step 2: Convert to fraction form
    50,974.96/70,343 = 28,315.40/x
  3. Step 3: Cross multiply
    50,974.96x = 70,343 × 28,315.40
  4. Step 4: Simplify right side
    50,974.96x = 1,991,790,182.20
  5. Step 5: Solve for x
    x = 1,991,790,182.20/50,974.96
  6. Step 6: Final answer
    x = 39,073.89

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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.