Home / 66,091.05-91,206.36-35,876.66

Finding the Fourth Proportional to 66,091.05, 91,206.36 and 35,876.66

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Solution

The fourth proportional to 66,091.05, 91,206.36 and 35,876.66 is: 49,510.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,091.05 : 91,206.36 = 35,876.66 : x
  2. Step 2: Convert to fraction form
    66,091.05/91,206.36 = 35,876.66/x
  3. Step 3: Cross multiply
    66,091.05x = 91,206.36 × 35,876.66
  4. Step 4: Simplify right side
    66,091.05x = 3,272,179,111.53
  5. Step 5: Solve for x
    x = 3,272,179,111.53/66,091.05
  6. Step 6: Final answer
    x = 49,510.17

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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.