Home / 51,014.35-76,447.40-28,780.46

Finding the Fourth Proportional to 51,014.35, 76,447.40 and 28,780.46

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Solution

The fourth proportional to 51,014.35, 76,447.40 and 28,780.46 is: 43,128.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,014.35 : 76,447.40 = 28,780.46 : x
  2. Step 2: Convert to fraction form
    51,014.35/76,447.40 = 28,780.46/x
  3. Step 3: Cross multiply
    51,014.35x = 76,447.40 × 28,780.46
  4. Step 4: Simplify right side
    51,014.35x = 2,200,191,027.52
  5. Step 5: Solve for x
    x = 2,200,191,027.52/51,014.35
  6. Step 6: Final answer
    x = 43,128.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.