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Finding the Fourth Proportional to 50,885.67, 70,220.56 and 30,739.04

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Solution

The fourth proportional to 50,885.67, 70,220.56 and 30,739.04 is: 42,418.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,885.67 : 70,220.56 = 30,739.04 : x
  2. Step 2: Convert to fraction form
    50,885.67/70,220.56 = 30,739.04/x
  3. Step 3: Cross multiply
    50,885.67x = 70,220.56 × 30,739.04
  4. Step 4: Simplify right side
    50,885.67x = 2,158,512,602.66
  5. Step 5: Solve for x
    x = 2,158,512,602.66/50,885.67
  6. Step 6: Final answer
    x = 42,418.87

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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.