Home / 56,690.20-78,240.90-32,817.88

Finding the Fourth Proportional to 56,690.20, 78,240.90 and 32,817.88

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Solution

The fourth proportional to 56,690.20, 78,240.90 and 32,817.88 is: 45,293.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,690.20 : 78,240.90 = 32,817.88 : x
  2. Step 2: Convert to fraction form
    56,690.20/78,240.90 = 32,817.88/x
  3. Step 3: Cross multiply
    56,690.20x = 78,240.90 × 32,817.88
  4. Step 4: Simplify right side
    56,690.20x = 2,567,700,467.29
  5. Step 5: Solve for x
    x = 2,567,700,467.29/56,690.20
  6. Step 6: Final answer
    x = 45,293.55

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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.