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Finding the Fourth Proportional to 50,930, 70,283.40 and 28,573.52

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Solution

The fourth proportional to 50,930, 70,283.40 and 28,573.52 is: 39,431.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,930 : 70,283.40 = 28,573.52 : x
  2. Step 2: Convert to fraction form
    50,930/70,283.40 = 28,573.52/x
  3. Step 3: Cross multiply
    50,930x = 70,283.40 × 28,573.52
  4. Step 4: Simplify right side
    50,930x = 2,008,244,135.57
  5. Step 5: Solve for x
    x = 2,008,244,135.57/50,930
  6. Step 6: Final answer
    x = 39,431.46

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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.