Home / 77,578.22-116,369.86-21,422.54

Finding the Fourth Proportional to 77,578.22, 116,369.86 and 21,422.54

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Solution

The fourth proportional to 77,578.22, 116,369.86 and 21,422.54 is: 32,134.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,578.22 : 116,369.86 = 21,422.54 : x
  2. Step 2: Convert to fraction form
    77,578.22/116,369.86 = 21,422.54/x
  3. Step 3: Cross multiply
    77,578.22x = 116,369.86 × 21,422.54
  4. Step 4: Simplify right side
    77,578.22x = 2,492,937,980.64
  5. Step 5: Solve for x
    x = 2,492,937,980.64/77,578.22
  6. Step 6: Final answer
    x = 32,134.51

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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.