Home / 50,805.72-70,108.39-28,142.59

Finding the Fourth Proportional to 50,805.72, 70,108.39 and 28,142.59

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Solution

The fourth proportional to 50,805.72, 70,108.39 and 28,142.59 is: 38,834.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,805.72 : 70,108.39 = 28,142.59 : x
  2. Step 2: Convert to fraction form
    50,805.72/70,108.39 = 28,142.59/x
  3. Step 3: Cross multiply
    50,805.72x = 70,108.39 × 28,142.59
  4. Step 4: Simplify right side
    50,805.72x = 1,973,031,508.39
  5. Step 5: Solve for x
    x = 1,973,031,508.39/50,805.72
  6. Step 6: Final answer
    x = 38,834.83

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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.