Home / 67,085.54-92,579.13-38,405.09

Finding the Fourth Proportional to 67,085.54, 92,579.13 and 38,405.09

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Solution

The fourth proportional to 67,085.54, 92,579.13 and 38,405.09 is: 52,999.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,085.54 : 92,579.13 = 38,405.09 : x
  2. Step 2: Convert to fraction form
    67,085.54/92,579.13 = 38,405.09/x
  3. Step 3: Cross multiply
    67,085.54x = 92,579.13 × 38,405.09
  4. Step 4: Simplify right side
    67,085.54x = 3,555,509,422.45
  5. Step 5: Solve for x
    x = 3,555,509,422.45/67,085.54
  6. Step 6: Final answer
    x = 52,999.64

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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.