Home / 85,795.81-118,358.17-53,982.25

Finding the Fourth Proportional to 85,795.81, 118,358.17 and 53,982.25

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Solution

The fourth proportional to 85,795.81, 118,358.17 and 53,982.25 is: 74,470.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,795.81 : 118,358.17 = 53,982.25 : x
  2. Step 2: Convert to fraction form
    85,795.81/118,358.17 = 53,982.25/x
  3. Step 3: Cross multiply
    85,795.81x = 118,358.17 × 53,982.25
  4. Step 4: Simplify right side
    85,795.81x = 6,389,240,537.91
  5. Step 5: Solve for x
    x = 6,389,240,537.91/85,795.81
  6. Step 6: Final answer
    x = 74,470.31

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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.