Home / 47,039.20-70,564.56-20,750.56

Finding the Fourth Proportional to 47,039.20, 70,564.56 and 20,750.56

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Solution

The fourth proportional to 47,039.20, 70,564.56 and 20,750.56 is: 31,128.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,039.20 : 70,564.56 = 20,750.56 : x
  2. Step 2: Convert to fraction form
    47,039.20/70,564.56 = 20,750.56/x
  3. Step 3: Cross multiply
    47,039.20x = 70,564.56 × 20,750.56
  4. Step 4: Simplify right side
    47,039.20x = 1,464,254,136.15
  5. Step 5: Solve for x
    x = 1,464,254,136.15/47,039.20
  6. Step 6: Final answer
    x = 31,128.38

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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.