Home / 85,796.31-118,358.86-53,982.75

Finding the Fourth Proportional to 85,796.31, 118,358.86 and 53,982.75

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Solution

The fourth proportional to 85,796.31, 118,358.86 and 53,982.75 is: 74,471.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,796.31 : 118,358.86 = 53,982.75 : x
  2. Step 2: Convert to fraction form
    85,796.31/118,358.86 = 53,982.75/x
  3. Step 3: Cross multiply
    85,796.31x = 118,358.86 × 53,982.75
  4. Step 4: Simplify right side
    85,796.31x = 6,389,336,749.67
  5. Step 5: Solve for x
    x = 6,389,336,749.67/85,796.31
  6. Step 6: Final answer
    x = 74,471.00

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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.