Home / 66,836.70-92,234.63-39,985.54

Finding the Fourth Proportional to 66,836.70, 92,234.63 and 39,985.54

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Solution

The fourth proportional to 66,836.70, 92,234.63 and 39,985.54 is: 55,180.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,836.70 : 92,234.63 = 39,985.54 : x
  2. Step 2: Convert to fraction form
    66,836.70/92,234.63 = 39,985.54/x
  3. Step 3: Cross multiply
    66,836.70x = 92,234.63 × 39,985.54
  4. Step 4: Simplify right side
    66,836.70x = 3,688,051,356.63
  5. Step 5: Solve for x
    x = 3,688,051,356.63/66,836.70
  6. Step 6: Final answer
    x = 55,180.03

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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.