Home / 57,877.20-86,820.60-18,433.20

Finding the Fourth Proportional to 57,877.20, 86,820.60 and 18,433.20

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Solution

The fourth proportional to 57,877.20, 86,820.60 and 18,433.20 is: 27,651.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,877.20 : 86,820.60 = 18,433.20 : x
  2. Step 2: Convert to fraction form
    57,877.20/86,820.60 = 18,433.20/x
  3. Step 3: Cross multiply
    57,877.20x = 86,820.60 × 18,433.20
  4. Step 4: Simplify right side
    57,877.20x = 1,600,381,483.92
  5. Step 5: Solve for x
    x = 1,600,381,483.92/57,877.20
  6. Step 6: Final answer
    x = 27,651.33

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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.