Home / 91,106.89-125,806.62-57,174.19

Finding the Fourth Proportional to 91,106.89, 125,806.62 and 57,174.19

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Solution

The fourth proportional to 91,106.89, 125,806.62 and 57,174.19 is: 78,950.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,106.89 : 125,806.62 = 57,174.19 : x
  2. Step 2: Convert to fraction form
    91,106.89/125,806.62 = 57,174.19/x
  3. Step 3: Cross multiply
    91,106.89x = 125,806.62 × 57,174.19
  4. Step 4: Simplify right side
    91,106.89x = 7,192,891,595.14
  5. Step 5: Solve for x
    x = 7,192,891,595.14/91,106.89
  6. Step 6: Final answer
    x = 78,950.03

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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.