Home / 49,947.06-74,920.32-20,364.78

Finding the Fourth Proportional to 49,947.06, 74,920.32 and 20,364.78

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Solution

The fourth proportional to 49,947.06, 74,920.32 and 20,364.78 is: 30,547.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,947.06 : 74,920.32 = 20,364.78 : x
  2. Step 2: Convert to fraction form
    49,947.06/74,920.32 = 20,364.78/x
  3. Step 3: Cross multiply
    49,947.06x = 74,920.32 × 20,364.78
  4. Step 4: Simplify right side
    49,947.06x = 1,525,735,834.33
  5. Step 5: Solve for x
    x = 1,525,735,834.33/49,947.06
  6. Step 6: Final answer
    x = 30,547.06

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1.5x scale

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.