Home / 91,795.36-125,852.52-90,136.48

Finding the Fourth Proportional to 91,795.36, 125,852.52 and 90,136.48

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Solution

The fourth proportional to 91,795.36, 125,852.52 and 90,136.48 is: 123,578.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,795.36 : 125,852.52 = 90,136.48 : x
  2. Step 2: Convert to fraction form
    91,795.36/125,852.52 = 90,136.48/x
  3. Step 3: Cross multiply
    91,795.36x = 125,852.52 × 90,136.48
  4. Step 4: Simplify right side
    91,795.36x = 11,343,903,151.93
  5. Step 5: Solve for x
    x = 11,343,903,151.93/91,795.36
  6. Step 6: Final answer
    x = 123,578.18

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.