Home / 57,138.28-78,841.44-35,902.50

Finding the Fourth Proportional to 57,138.28, 78,841.44 and 35,902.50

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Solution

The fourth proportional to 57,138.28, 78,841.44 and 35,902.50 is: 49,539.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,138.28 : 78,841.44 = 35,902.50 : x
  2. Step 2: Convert to fraction form
    57,138.28/78,841.44 = 35,902.50/x
  3. Step 3: Cross multiply
    57,138.28x = 78,841.44 × 35,902.50
  4. Step 4: Simplify right side
    57,138.28x = 2,830,604,799.60
  5. Step 5: Solve for x
    x = 2,830,604,799.60/57,138.28
  6. Step 6: Final answer
    x = 49,539.55

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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.