Home / 47,100.78-64,999.44-25,880.40

Finding the Fourth Proportional to 47,100.78, 64,999.44 and 25,880.40

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Solution

The fourth proportional to 47,100.78, 64,999.44 and 25,880.40 is: 35,715.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,100.78 : 64,999.44 = 25,880.40 : x
  2. Step 2: Convert to fraction form
    47,100.78/64,999.44 = 25,880.40/x
  3. Step 3: Cross multiply
    47,100.78x = 64,999.44 × 25,880.40
  4. Step 4: Simplify right side
    47,100.78x = 1,682,211,506.98
  5. Step 5: Solve for x
    x = 1,682,211,506.98/47,100.78
  6. Step 6: Final answer
    x = 35,715.15

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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.