Home / 43,826.60-65,739.90-28,080.20

Finding the Fourth Proportional to 43,826.60, 65,739.90 and 28,080.20

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Solution

The fourth proportional to 43,826.60, 65,739.90 and 28,080.20 is: 42,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,826.60 : 65,739.90 = 28,080.20 : x
  2. Step 2: Convert to fraction form
    43,826.60/65,739.90 = 28,080.20/x
  3. Step 3: Cross multiply
    43,826.60x = 65,739.90 × 28,080.20
  4. Step 4: Simplify right side
    43,826.60x = 1,845,989,539.98
  5. Step 5: Solve for x
    x = 1,845,989,539.98/43,826.60
  6. Step 6: Final answer
    x = 42,120.30

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1.5x scale

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.