Home / 85,365.09-117,765.70-51,353.60

Finding the Fourth Proportional to 85,365.09, 117,765.70 and 51,353.60

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Solution

The fourth proportional to 85,365.09, 117,765.70 and 51,353.60 is: 70,845.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,365.09 : 117,765.70 = 51,353.60 : x
  2. Step 2: Convert to fraction form
    85,365.09/117,765.70 = 51,353.60/x
  3. Step 3: Cross multiply
    85,365.09x = 117,765.70 × 51,353.60
  4. Step 4: Simplify right side
    85,365.09x = 6,047,691,934.31
  5. Step 5: Solve for x
    x = 6,047,691,934.31/85,365.09
  6. Step 6: Final answer
    x = 70,845.02

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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.