Home / 51,329.85-70,843.75-49,980.74

Finding the Fourth Proportional to 51,329.85, 70,843.75 and 49,980.74

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Solution

The fourth proportional to 51,329.85, 70,843.75 and 49,980.74 is: 68,981.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,329.85 : 70,843.75 = 49,980.74 : x
  2. Step 2: Convert to fraction form
    51,329.85/70,843.75 = 49,980.74/x
  3. Step 3: Cross multiply
    51,329.85x = 70,843.75 × 49,980.74
  4. Step 4: Simplify right side
    51,329.85x = 3,540,823,101.53
  5. Step 5: Solve for x
    x = 3,540,823,101.53/51,329.85
  6. Step 6: Final answer
    x = 68,981.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.