Home / 81,522.24-122,294.76-77,040.24

Finding the Fourth Proportional to 81,522.24, 122,294.76 and 77,040.24

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Solution

The fourth proportional to 81,522.24, 122,294.76 and 77,040.24 is: 115,571.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,522.24 : 122,294.76 = 77,040.24 : x
  2. Step 2: Convert to fraction form
    81,522.24/122,294.76 = 77,040.24/x
  3. Step 3: Cross multiply
    81,522.24x = 122,294.76 × 77,040.24
  4. Step 4: Simplify right side
    81,522.24x = 9,421,617,661.14
  5. Step 5: Solve for x
    x = 9,421,617,661.14/81,522.24
  6. Step 6: Final answer
    x = 115,571.13

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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.