Home / 66,840.19-92,239.46-38,545.88

Finding the Fourth Proportional to 66,840.19, 92,239.46 and 38,545.88

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Solution

The fourth proportional to 66,840.19, 92,239.46 and 38,545.88 is: 53,193.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,840.19 : 92,239.46 = 38,545.88 : x
  2. Step 2: Convert to fraction form
    66,840.19/92,239.46 = 38,545.88/x
  3. Step 3: Cross multiply
    66,840.19x = 92,239.46 × 38,545.88
  4. Step 4: Simplify right side
    66,840.19x = 3,555,450,647.05
  5. Step 5: Solve for x
    x = 3,555,450,647.05/66,840.19
  6. Step 6: Final answer
    x = 53,193.31

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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.