Home / 78,922.65-108,915.60-43,113.26

Finding the Fourth Proportional to 78,922.65, 108,915.60 and 43,113.26

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Solution

The fourth proportional to 78,922.65, 108,915.60 and 43,113.26 is: 59,497.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,922.65 : 108,915.60 = 43,113.26 : x
  2. Step 2: Convert to fraction form
    78,922.65/108,915.60 = 43,113.26/x
  3. Step 3: Cross multiply
    78,922.65x = 108,915.60 × 43,113.26
  4. Step 4: Simplify right side
    78,922.65x = 4,695,706,036.28
  5. Step 5: Solve for x
    x = 4,695,706,036.28/78,922.65
  6. Step 6: Final answer
    x = 59,497.57

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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.