Home / 78,756.26-118,136.56-25,450.52

Finding the Fourth Proportional to 78,756.26, 118,136.56 and 25,450.52

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Solution

The fourth proportional to 78,756.26, 118,136.56 and 25,450.52 is: 38,176.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,756.26 : 118,136.56 = 25,450.52 : x
  2. Step 2: Convert to fraction form
    78,756.26/118,136.56 = 25,450.52/x
  3. Step 3: Cross multiply
    78,756.26x = 118,136.56 × 25,450.52
  4. Step 4: Simplify right side
    78,756.26x = 3,006,636,883.01
  5. Step 5: Solve for x
    x = 3,006,636,883.01/78,756.26
  6. Step 6: Final answer
    x = 38,176.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.