Home / 71,388.04-98,515.32-39,556.60

Finding the Fourth Proportional to 71,388.04, 98,515.32 and 39,556.60

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Solution

The fourth proportional to 71,388.04, 98,515.32 and 39,556.60 is: 54,588.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,388.04 : 98,515.32 = 39,556.60 : x
  2. Step 2: Convert to fraction form
    71,388.04/98,515.32 = 39,556.60/x
  3. Step 3: Cross multiply
    71,388.04x = 98,515.32 × 39,556.60
  4. Step 4: Simplify right side
    71,388.04x = 3,896,931,107.11
  5. Step 5: Solve for x
    x = 3,896,931,107.11/71,388.04
  6. Step 6: Final answer
    x = 54,588.01

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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.