Home / 51,485.85-71,046.95-28,820.97

Finding the Fourth Proportional to 51,485.85, 71,046.95 and 28,820.97

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Solution

The fourth proportional to 51,485.85, 71,046.95 and 28,820.97 is: 39,770.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,485.85 : 71,046.95 = 28,820.97 : x
  2. Step 2: Convert to fraction form
    51,485.85/71,046.95 = 28,820.97/x
  3. Step 3: Cross multiply
    51,485.85x = 71,046.95 × 28,820.97
  4. Step 4: Simplify right side
    51,485.85x = 2,047,641,870.44
  5. Step 5: Solve for x
    x = 2,047,641,870.44/51,485.85
  6. Step 6: Final answer
    x = 39,770.96

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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.