Home / 49,389.20-74,116.20-28,329.20

Finding the Fourth Proportional to 49,389.20, 74,116.20 and 28,329.20

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Solution

The fourth proportional to 49,389.20, 74,116.20 and 28,329.20 is: 42,512.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,389.20 : 74,116.20 = 28,329.20 : x
  2. Step 2: Convert to fraction form
    49,389.20/74,116.20 = 28,329.20/x
  3. Step 3: Cross multiply
    49,389.20x = 74,116.20 × 28,329.20
  4. Step 4: Simplify right side
    49,389.20x = 2,099,652,653.04
  5. Step 5: Solve for x
    x = 2,099,652,653.04/49,389.20
  6. Step 6: Final answer
    x = 42,512.38

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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.