Home / 51,140.60-76,612.62-31,361.48

Finding the Fourth Proportional to 51,140.60, 76,612.62 and 31,361.48

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Solution

The fourth proportional to 51,140.60, 76,612.62 and 31,361.48 is: 46,981.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,140.60 : 76,612.62 = 31,361.48 : x
  2. Step 2: Convert to fraction form
    51,140.60/76,612.62 = 31,361.48/x
  3. Step 3: Cross multiply
    51,140.60x = 76,612.62 × 31,361.48
  4. Step 4: Simplify right side
    51,140.60x = 2,402,685,149.88
  5. Step 5: Solve for x
    x = 2,402,685,149.88/51,140.60
  6. Step 6: Final answer
    x = 46,981.95

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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.