Home / 77,176.19-115,768.77-29,791.55

Finding the Fourth Proportional to 77,176.19, 115,768.77 and 29,791.55

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Solution

The fourth proportional to 77,176.19, 115,768.77 and 29,791.55 is: 44,689.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,176.19 : 115,768.77 = 29,791.55 : x
  2. Step 2: Convert to fraction form
    77,176.19/115,768.77 = 29,791.55/x
  3. Step 3: Cross multiply
    77,176.19x = 115,768.77 × 29,791.55
  4. Step 4: Simplify right side
    77,176.19x = 3,448,931,099.89
  5. Step 5: Solve for x
    x = 3,448,931,099.89/77,176.19
  6. Step 6: Final answer
    x = 44,689.06

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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.