Home / 85,858.03-118,528.59-66,694.87

Finding the Fourth Proportional to 85,858.03, 118,528.59 and 66,694.87

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Solution

The fourth proportional to 85,858.03, 118,528.59 and 66,694.87 is: 92,073.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,858.03 : 118,528.59 = 66,694.87 : x
  2. Step 2: Convert to fraction form
    85,858.03/118,528.59 = 66,694.87/x
  3. Step 3: Cross multiply
    85,858.03x = 118,528.59 × 66,694.87
  4. Step 4: Simplify right side
    85,858.03x = 7,905,248,901.33
  5. Step 5: Solve for x
    x = 7,905,248,901.33/85,858.03
  6. Step 6: Final answer
    x = 92,073.50

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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.