Home / 56,381.25-77,808.69-31,230.75

Finding the Fourth Proportional to 56,381.25, 77,808.69 and 31,230.75

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Solution

The fourth proportional to 56,381.25, 77,808.69 and 31,230.75 is: 43,099.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,381.25 : 77,808.69 = 31,230.75 : x
  2. Step 2: Convert to fraction form
    56,381.25/77,808.69 = 31,230.75/x
  3. Step 3: Cross multiply
    56,381.25x = 77,808.69 × 31,230.75
  4. Step 4: Simplify right side
    56,381.25x = 2,430,023,745.22
  5. Step 5: Solve for x
    x = 2,430,023,745.22/56,381.25
  6. Step 6: Final answer
    x = 43,099.86

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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.