Home / 51,546.90-71,139.72-28,889.73

Finding the Fourth Proportional to 51,546.90, 71,139.72 and 28,889.73

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Solution

The fourth proportional to 51,546.90, 71,139.72 and 28,889.73 is: 39,870.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,546.90 : 71,139.72 = 28,889.73 : x
  2. Step 2: Convert to fraction form
    51,546.90/71,139.72 = 28,889.73/x
  3. Step 3: Cross multiply
    51,546.90x = 71,139.72 × 28,889.73
  4. Step 4: Simplify right side
    51,546.90x = 2,055,207,303.08
  5. Step 5: Solve for x
    x = 2,055,207,303.08/51,546.90
  6. Step 6: Final answer
    x = 39,870.63

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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.