Home / 85,033.09-117,507.50-63,775.45

Finding the Fourth Proportional to 85,033.09, 117,507.50 and 63,775.45

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Solution

The fourth proportional to 85,033.09, 117,507.50 and 63,775.45 is: 88,131.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,033.09 : 117,507.50 = 63,775.45 : x
  2. Step 2: Convert to fraction form
    85,033.09/117,507.50 = 63,775.45/x
  3. Step 3: Cross multiply
    85,033.09x = 117,507.50 × 63,775.45
  4. Step 4: Simplify right side
    85,033.09x = 7,494,093,690.88
  5. Step 5: Solve for x
    x = 7,494,093,690.88/85,033.09
  6. Step 6: Final answer
    x = 88,131.50

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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.