Home / 83,890.70-115,774.16-48,083.03

Finding the Fourth Proportional to 83,890.70, 115,774.16 and 48,083.03

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Solution

The fourth proportional to 83,890.70, 115,774.16 and 48,083.03 is: 66,357.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,890.70 : 115,774.16 = 48,083.03 : x
  2. Step 2: Convert to fraction form
    83,890.70/115,774.16 = 48,083.03/x
  3. Step 3: Cross multiply
    83,890.70x = 115,774.16 × 48,083.03
  4. Step 4: Simplify right side
    83,890.70x = 5,566,772,945.07
  5. Step 5: Solve for x
    x = 5,566,772,945.07/83,890.70
  6. Step 6: Final answer
    x = 66,357.45

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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.