Home / 51,590.55-71,190-28,930.49

Finding the Fourth Proportional to 51,590.55, 71,190 and 28,930.49

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Solution

The fourth proportional to 51,590.55, 71,190 and 28,930.49 is: 39,921.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,590.55 : 71,190 = 28,930.49 : x
  2. Step 2: Convert to fraction form
    51,590.55/71,190 = 28,930.49/x
  3. Step 3: Cross multiply
    51,590.55x = 71,190 × 28,930.49
  4. Step 4: Simplify right side
    51,590.55x = 2,059,561,583.10
  5. Step 5: Solve for x
    x = 2,059,561,583.10/51,590.55
  6. Step 6: Final answer
    x = 39,921.30

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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.