Home / 51,410.40-70,930.80-30,177.60

Finding the Fourth Proportional to 51,410.40, 70,930.80 and 30,177.60

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Solution

The fourth proportional to 51,410.40, 70,930.80 and 30,177.60 is: 41,635.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,410.40 : 70,930.80 = 30,177.60 : x
  2. Step 2: Convert to fraction form
    51,410.40/70,930.80 = 30,177.60/x
  3. Step 3: Cross multiply
    51,410.40x = 70,930.80 × 30,177.60
  4. Step 4: Simplify right side
    51,410.40x = 2,140,521,310.08
  5. Step 5: Solve for x
    x = 2,140,521,310.08/51,410.40
  6. Step 6: Final answer
    x = 41,635.96

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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.