Home / 56,850.75-78,454.04-31,699.71

Finding the Fourth Proportional to 56,850.75, 78,454.04 and 31,699.71

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Solution

The fourth proportional to 56,850.75, 78,454.04 and 31,699.71 is: 43,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,850.75 : 78,454.04 = 31,699.71 : x
  2. Step 2: Convert to fraction form
    56,850.75/78,454.04 = 31,699.71/x
  3. Step 3: Cross multiply
    56,850.75x = 78,454.04 × 31,699.71
  4. Step 4: Simplify right side
    56,850.75x = 2,486,970,157.83
  5. Step 5: Solve for x
    x = 2,486,970,157.83/56,850.75
  6. Step 6: Final answer
    x = 43,745.60

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1.5x scale

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.