Home / 66,112.14-91,172.21-43,411.08

Finding the Fourth Proportional to 66,112.14, 91,172.21 and 43,411.08

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Solution

The fourth proportional to 66,112.14, 91,172.21 and 43,411.08 is: 59,866.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,112.14 : 91,172.21 = 43,411.08 : x
  2. Step 2: Convert to fraction form
    66,112.14/91,172.21 = 43,411.08/x
  3. Step 3: Cross multiply
    66,112.14x = 91,172.21 × 43,411.08
  4. Step 4: Simplify right side
    66,112.14x = 3,957,883,885.03
  5. Step 5: Solve for x
    x = 3,957,883,885.03/66,112.14
  6. Step 6: Final answer
    x = 59,866.22

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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.