Home / 56,759.40-85,149.43-19,317.69

Finding the Fourth Proportional to 56,759.40, 85,149.43 and 19,317.69

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Solution

The fourth proportional to 56,759.40, 85,149.43 and 19,317.69 is: 28,980.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,759.40 : 85,149.43 = 19,317.69 : x
  2. Step 2: Convert to fraction form
    56,759.40/85,149.43 = 19,317.69/x
  3. Step 3: Cross multiply
    56,759.40x = 85,149.43 × 19,317.69
  4. Step 4: Simplify right side
    56,759.40x = 1,644,890,244.12
  5. Step 5: Solve for x
    x = 1,644,890,244.12/56,759.40
  6. Step 6: Final answer
    x = 28,980.05

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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.