Home / 66,083.04-91,125.63-39,220.34

Finding the Fourth Proportional to 66,083.04, 91,125.63 and 39,220.34

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Solution

The fourth proportional to 66,083.04, 91,125.63 and 39,220.34 is: 54,083.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,083.04 : 91,125.63 = 39,220.34 : x
  2. Step 2: Convert to fraction form
    66,083.04/91,125.63 = 39,220.34/x
  3. Step 3: Cross multiply
    66,083.04x = 91,125.63 × 39,220.34
  4. Step 4: Simplify right side
    66,083.04x = 3,573,977,735.69
  5. Step 5: Solve for x
    x = 3,573,977,735.69/66,083.04
  6. Step 6: Final answer
    x = 54,083.13

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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.