Home / 91,158.41-125,795.33-57,185.19

Finding the Fourth Proportional to 91,158.41, 125,795.33 and 57,185.19

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Solution

The fourth proportional to 91,158.41, 125,795.33 and 57,185.19 is: 78,913.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,158.41 : 125,795.33 = 57,185.19 : x
  2. Step 2: Convert to fraction form
    91,158.41/125,795.33 = 57,185.19/x
  3. Step 3: Cross multiply
    91,158.41x = 125,795.33 × 57,185.19
  4. Step 4: Simplify right side
    91,158.41x = 7,193,629,775.68
  5. Step 5: Solve for x
    x = 7,193,629,775.68/91,158.41
  6. Step 6: Final answer
    x = 78,913.50

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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.