Home / 57,745.32-86,548.22-28,118.76

Finding the Fourth Proportional to 57,745.32, 86,548.22 and 28,118.76

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Solution

The fourth proportional to 57,745.32, 86,548.22 and 28,118.76 is: 42,144.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,745.32 : 86,548.22 = 28,118.76 : x
  2. Step 2: Convert to fraction form
    57,745.32/86,548.22 = 28,118.76/x
  3. Step 3: Cross multiply
    57,745.32x = 86,548.22 × 28,118.76
  4. Step 4: Simplify right side
    57,745.32x = 2,433,628,626.61
  5. Step 5: Solve for x
    x = 2,433,628,626.61/57,745.32
  6. Step 6: Final answer
    x = 42,144.17

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1.5x scale

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.