Home / 64,425-88,916.22-39,289.08

Finding the Fourth Proportional to 64,425, 88,916.22 and 39,289.08

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Solution

The fourth proportional to 64,425, 88,916.22 and 39,289.08 is: 54,224.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,425 : 88,916.22 = 39,289.08 : x
  2. Step 2: Convert to fraction form
    64,425/88,916.22 = 39,289.08/x
  3. Step 3: Cross multiply
    64,425x = 88,916.22 × 39,289.08
  4. Step 4: Simplify right side
    64,425x = 3,493,436,480.88
  5. Step 5: Solve for x
    x = 3,493,436,480.88/64,425
  6. Step 6: Final answer
    x = 54,224.86

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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.