Home / 77,778.99-116,667.14-25,188.57

Finding the Fourth Proportional to 77,778.99, 116,667.14 and 25,188.57

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Solution

The fourth proportional to 77,778.99, 116,667.14 and 25,188.57 is: 37,782.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,778.99 : 116,667.14 = 25,188.57 : x
  2. Step 2: Convert to fraction form
    77,778.99/116,667.14 = 25,188.57/x
  3. Step 3: Cross multiply
    77,778.99x = 116,667.14 × 25,188.57
  4. Step 4: Simplify right side
    77,778.99x = 2,938,678,296.65
  5. Step 5: Solve for x
    x = 2,938,678,296.65/77,778.99
  6. Step 6: Final answer
    x = 37,782.42

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1.5x scale

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.