Home / 81,529.55-122,306.48-28,934.63

Finding the Fourth Proportional to 81,529.55, 122,306.48 and 28,934.63

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Solution

The fourth proportional to 81,529.55, 122,306.48 and 28,934.63 is: 43,406.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,529.55 : 122,306.48 = 28,934.63 : x
  2. Step 2: Convert to fraction form
    81,529.55/122,306.48 = 28,934.63/x
  3. Step 3: Cross multiply
    81,529.55x = 122,306.48 × 28,934.63
  4. Step 4: Simplify right side
    81,529.55x = 3,538,892,745.40
  5. Step 5: Solve for x
    x = 3,538,892,745.40/81,529.55
  6. Step 6: Final answer
    x = 43,406.26

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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.