Home / 84,590.44-126,900.30-28,436.04

Finding the Fourth Proportional to 84,590.44, 126,900.30 and 28,436.04

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Solution

The fourth proportional to 84,590.44, 126,900.30 and 28,436.04 is: 42,658.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,590.44 : 126,900.30 = 28,436.04 : x
  2. Step 2: Convert to fraction form
    84,590.44/126,900.30 = 28,436.04/x
  3. Step 3: Cross multiply
    84,590.44x = 126,900.30 × 28,436.04
  4. Step 4: Simplify right side
    84,590.44x = 3,608,542,006.81
  5. Step 5: Solve for x
    x = 3,608,542,006.81/84,590.44
  6. Step 6: Final answer
    x = 42,658.98

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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.