Home / 49,321.98-68,064.20-28,101.40

Finding the Fourth Proportional to 49,321.98, 68,064.20 and 28,101.40

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Solution

The fourth proportional to 49,321.98, 68,064.20 and 28,101.40 is: 38,779.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,321.98 : 68,064.20 = 28,101.40 : x
  2. Step 2: Convert to fraction form
    49,321.98/68,064.20 = 28,101.40/x
  3. Step 3: Cross multiply
    49,321.98x = 68,064.20 × 28,101.40
  4. Step 4: Simplify right side
    49,321.98x = 1,912,699,104.59
  5. Step 5: Solve for x
    x = 1,912,699,104.59/49,321.98
  6. Step 6: Final answer
    x = 38,779.85

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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.