Home / 71,453.32-98,609.49-39,621.52

Finding the Fourth Proportional to 71,453.32, 98,609.49 and 39,621.52

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Solution

The fourth proportional to 71,453.32, 98,609.49 and 39,621.52 is: 54,679.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,453.32 : 98,609.49 = 39,621.52 : x
  2. Step 2: Convert to fraction form
    71,453.32/98,609.49 = 39,621.52/x
  3. Step 3: Cross multiply
    71,453.32x = 98,609.49 × 39,621.52
  4. Step 4: Simplify right side
    71,453.32x = 3,907,057,880.22
  5. Step 5: Solve for x
    x = 3,907,057,880.22/71,453.32
  6. Step 6: Final answer
    x = 54,679.86

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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.