Home / 43,163.70-64,818.45-28,437.90

Finding the Fourth Proportional to 43,163.70, 64,818.45 and 28,437.90

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Solution

The fourth proportional to 43,163.70, 64,818.45 and 28,437.90 is: 42,704.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,163.70 : 64,818.45 = 28,437.90 : x
  2. Step 2: Convert to fraction form
    43,163.70/64,818.45 = 28,437.90/x
  3. Step 3: Cross multiply
    43,163.70x = 64,818.45 × 28,437.90
  4. Step 4: Simplify right side
    43,163.70x = 1,843,300,599.26
  5. Step 5: Solve for x
    x = 1,843,300,599.26/43,163.70
  6. Step 6: Final answer
    x = 42,704.88

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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.