Home / 56,919.12-85,370.65-31,281.44

Finding the Fourth Proportional to 56,919.12, 85,370.65 and 31,281.44

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Solution

The fourth proportional to 56,919.12, 85,370.65 and 31,281.44 is: 46,917.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,919.12 : 85,370.65 = 31,281.44 : x
  2. Step 2: Convert to fraction form
    56,919.12/85,370.65 = 31,281.44/x
  3. Step 3: Cross multiply
    56,919.12x = 85,370.65 × 31,281.44
  4. Step 4: Simplify right side
    56,919.12x = 2,670,516,865.74
  5. Step 5: Solve for x
    x = 2,670,516,865.74/56,919.12
  6. Step 6: Final answer
    x = 46,917.75

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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.