Home / 57,255.45-78,999.46-36,021.50

Finding the Fourth Proportional to 57,255.45, 78,999.46 and 36,021.50

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Solution

The fourth proportional to 57,255.45, 78,999.46 and 36,021.50 is: 49,701.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,255.45 : 78,999.46 = 36,021.50 : x
  2. Step 2: Convert to fraction form
    57,255.45/78,999.46 = 36,021.50/x
  3. Step 3: Cross multiply
    57,255.45x = 78,999.46 × 36,021.50
  4. Step 4: Simplify right side
    57,255.45x = 2,845,679,048.39
  5. Step 5: Solve for x
    x = 2,845,679,048.39/57,255.45
  6. Step 6: Final answer
    x = 49,701.45

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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.