Home / 71,161.64-98,208.15-39,329.85

Finding the Fourth Proportional to 71,161.64, 98,208.15 and 39,329.85

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Solution

The fourth proportional to 71,161.64, 98,208.15 and 39,329.85 is: 54,278.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,161.64 : 98,208.15 = 39,329.85 : x
  2. Step 2: Convert to fraction form
    71,161.64/98,208.15 = 39,329.85/x
  3. Step 3: Cross multiply
    71,161.64x = 98,208.15 × 39,329.85
  4. Step 4: Simplify right side
    71,161.64x = 3,862,512,029.07
  5. Step 5: Solve for x
    x = 3,862,512,029.07/71,161.64
  6. Step 6: Final answer
    x = 54,278.01

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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.