Home / 56,895.75-78,516.18-31,745.25

Finding the Fourth Proportional to 56,895.75, 78,516.18 and 31,745.25

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Solution

The fourth proportional to 56,895.75, 78,516.18 and 31,745.25 is: 43,808.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,895.75 : 78,516.18 = 31,745.25 : x
  2. Step 2: Convert to fraction form
    56,895.75/78,516.18 = 31,745.25/x
  3. Step 3: Cross multiply
    56,895.75x = 78,516.18 × 31,745.25
  4. Step 4: Simplify right side
    56,895.75x = 2,492,515,763.15
  5. Step 5: Solve for x
    x = 2,492,515,763.15/56,895.75
  6. Step 6: Final answer
    x = 43,808.47

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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.