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Finding the Fourth Proportional to 50,646.88, 69,898.40 and 30,504.80

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Solution

The fourth proportional to 50,646.88, 69,898.40 and 30,504.80 is: 42,100.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,646.88 : 69,898.40 = 30,504.80 : x
  2. Step 2: Convert to fraction form
    50,646.88/69,898.40 = 30,504.80/x
  3. Step 3: Cross multiply
    50,646.88x = 69,898.40 × 30,504.80
  4. Step 4: Simplify right side
    50,646.88x = 2,132,236,712.32
  5. Step 5: Solve for x
    x = 2,132,236,712.32/50,646.88
  6. Step 6: Final answer
    x = 42,100.06

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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.