Home / 77,720.95-116,568.87-27,792.55

Finding the Fourth Proportional to 77,720.95, 116,568.87 and 27,792.55

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Solution

The fourth proportional to 77,720.95, 116,568.87 and 27,792.55 is: 41,684.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,720.95 : 116,568.87 = 27,792.55 : x
  2. Step 2: Convert to fraction form
    77,720.95/116,568.87 = 27,792.55/x
  3. Step 3: Cross multiply
    77,720.95x = 116,568.87 × 27,792.55
  4. Step 4: Simplify right side
    77,720.95x = 3,239,746,147.92
  5. Step 5: Solve for x
    x = 3,239,746,147.92/77,720.95
  6. Step 6: Final answer
    x = 41,684.34

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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.