Home / 83,902.18-115,787.64-47,605.16

Finding the Fourth Proportional to 83,902.18, 115,787.64 and 47,605.16

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Solution

The fourth proportional to 83,902.18, 115,787.64 and 47,605.16 is: 65,696.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,902.18 : 115,787.64 = 47,605.16 : x
  2. Step 2: Convert to fraction form
    83,902.18/115,787.64 = 47,605.16/x
  3. Step 3: Cross multiply
    83,902.18x = 115,787.64 × 47,605.16
  4. Step 4: Simplify right side
    83,902.18x = 5,512,089,128.22
  5. Step 5: Solve for x
    x = 5,512,089,128.22/83,902.18
  6. Step 6: Final answer
    x = 65,696.61

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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.