Home / 49,955.20-74,920.80-28,849.60

Finding the Fourth Proportional to 49,955.20, 74,920.80 and 28,849.60

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Solution

The fourth proportional to 49,955.20, 74,920.80 and 28,849.60 is: 43,267.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,955.20 : 74,920.80 = 28,849.60 : x
  2. Step 2: Convert to fraction form
    49,955.20/74,920.80 = 28,849.60/x
  3. Step 3: Cross multiply
    49,955.20x = 74,920.80 × 28,849.60
  4. Step 4: Simplify right side
    49,955.20x = 2,161,435,111.68
  5. Step 5: Solve for x
    x = 2,161,435,111.68/49,955.20
  6. Step 6: Final answer
    x = 43,267.47

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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.