Home / 57,135.45-78,820.74-36,998.82

Finding the Fourth Proportional to 57,135.45, 78,820.74 and 36,998.82

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Solution

The fourth proportional to 57,135.45, 78,820.74 and 36,998.82 is: 51,041.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,135.45 : 78,820.74 = 36,998.82 : x
  2. Step 2: Convert to fraction form
    57,135.45/78,820.74 = 36,998.82/x
  3. Step 3: Cross multiply
    57,135.45x = 78,820.74 × 36,998.82
  4. Step 4: Simplify right side
    57,135.45x = 2,916,274,371.53
  5. Step 5: Solve for x
    x = 2,916,274,371.53/57,135.45
  6. Step 6: Final answer
    x = 51,041.42

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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.