Home / 56,438.30-84,690.41-21,380.69

Finding the Fourth Proportional to 56,438.30, 84,690.41 and 21,380.69

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Solution

The fourth proportional to 56,438.30, 84,690.41 and 21,380.69 is: 32,083.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,438.30 : 84,690.41 = 21,380.69 : x
  2. Step 2: Convert to fraction form
    56,438.30/84,690.41 = 21,380.69/x
  3. Step 3: Cross multiply
    56,438.30x = 84,690.41 × 21,380.69
  4. Step 4: Simplify right side
    56,438.30x = 1,810,739,507.01
  5. Step 5: Solve for x
    x = 1,810,739,507.01/56,438.30
  6. Step 6: Final answer
    x = 32,083.52

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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.