Home / 50,790.48-70,109.68-30,648.20

Finding the Fourth Proportional to 50,790.48, 70,109.68 and 30,648.20

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Solution

The fourth proportional to 50,790.48, 70,109.68 and 30,648.20 is: 42,305.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,790.48 : 70,109.68 = 30,648.20 : x
  2. Step 2: Convert to fraction form
    50,790.48/70,109.68 = 30,648.20/x
  3. Step 3: Cross multiply
    50,790.48x = 70,109.68 × 30,648.20
  4. Step 4: Simplify right side
    50,790.48x = 2,148,735,494.58
  5. Step 5: Solve for x
    x = 2,148,735,494.58/50,790.48
  6. Step 6: Final answer
    x = 42,305.87

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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.