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Finding the Fourth Proportional to 50,803.60, 70,094.69 and 30,383.20

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Solution

The fourth proportional to 50,803.60, 70,094.69 and 30,383.20 is: 41,920.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,803.60 : 70,094.69 = 30,383.20 : x
  2. Step 2: Convert to fraction form
    50,803.60/70,094.69 = 30,383.20/x
  3. Step 3: Cross multiply
    50,803.60x = 70,094.69 × 30,383.20
  4. Step 4: Simplify right side
    50,803.60x = 2,129,700,771.99
  5. Step 5: Solve for x
    x = 2,129,700,771.99/50,803.60
  6. Step 6: Final answer
    x = 41,920.27

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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.