Home / 66,173.34-91,327.06-39,315.94

Finding the Fourth Proportional to 66,173.34, 91,327.06 and 39,315.94

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Solution

The fourth proportional to 66,173.34, 91,327.06 and 39,315.94 is: 54,260.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,173.34 : 91,327.06 = 39,315.94 : x
  2. Step 2: Convert to fraction form
    66,173.34/91,327.06 = 39,315.94/x
  3. Step 3: Cross multiply
    66,173.34x = 91,327.06 × 39,315.94
  4. Step 4: Simplify right side
    66,173.34x = 3,590,609,211.34
  5. Step 5: Solve for x
    x = 3,590,609,211.34/66,173.34
  6. Step 6: Final answer
    x = 54,260.66

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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.