Home / 51,080.83-70,490.20-28,419.86

Finding the Fourth Proportional to 51,080.83, 70,490.20 and 28,419.86

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Solution

The fourth proportional to 51,080.83, 70,490.20 and 28,419.86 is: 39,218.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,080.83 : 70,490.20 = 28,419.86 : x
  2. Step 2: Convert to fraction form
    51,080.83/70,490.20 = 28,419.86/x
  3. Step 3: Cross multiply
    51,080.83x = 70,490.20 × 28,419.86
  4. Step 4: Simplify right side
    51,080.83x = 2,003,321,579.15
  5. Step 5: Solve for x
    x = 2,003,321,579.15/51,080.83
  6. Step 6: Final answer
    x = 39,218.66

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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.