Home / 66,220.77-91,385.13-36,006.06

Finding the Fourth Proportional to 66,220.77, 91,385.13 and 36,006.06

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Solution

The fourth proportional to 66,220.77, 91,385.13 and 36,006.06 is: 49,688.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,220.77 : 91,385.13 = 36,006.06 : x
  2. Step 2: Convert to fraction form
    66,220.77/91,385.13 = 36,006.06/x
  3. Step 3: Cross multiply
    66,220.77x = 91,385.13 × 36,006.06
  4. Step 4: Simplify right side
    66,220.77x = 3,290,418,473.89
  5. Step 5: Solve for x
    x = 3,290,418,473.89/66,220.77
  6. Step 6: Final answer
    x = 49,688.62

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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.