Home / 71,418.66-98,558.75-39,156.32

Finding the Fourth Proportional to 71,418.66, 98,558.75 and 39,156.32

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Solution

The fourth proportional to 71,418.66, 98,558.75 and 39,156.32 is: 54,036.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,418.66 : 98,558.75 = 39,156.32 : x
  2. Step 2: Convert to fraction form
    71,418.66/98,558.75 = 39,156.32/x
  3. Step 3: Cross multiply
    71,418.66x = 98,558.75 × 39,156.32
  4. Step 4: Simplify right side
    71,418.66x = 3,859,197,953.80
  5. Step 5: Solve for x
    x = 3,859,197,953.80/71,418.66
  6. Step 6: Final answer
    x = 54,036.27

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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.