Home / 86,428.75-119,208.67-66,056.84

Finding the Fourth Proportional to 86,428.75, 119,208.67 and 66,056.84

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Solution

The fourth proportional to 86,428.75, 119,208.67 and 66,056.84 is: 91,110.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,428.75 : 119,208.67 = 66,056.84 : x
  2. Step 2: Convert to fraction form
    86,428.75/119,208.67 = 66,056.84/x
  3. Step 3: Cross multiply
    86,428.75x = 119,208.67 × 66,056.84
  4. Step 4: Simplify right side
    86,428.75x = 7,874,548,040.80
  5. Step 5: Solve for x
    x = 7,874,548,040.80/86,428.75
  6. Step 6: Final answer
    x = 91,110.28

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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.