Home / 84,441.85-126,627.70-31,136.86

Finding the Fourth Proportional to 84,441.85, 126,627.70 and 31,136.86

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Solution

The fourth proportional to 84,441.85, 126,627.70 and 31,136.86 is: 46,692.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,441.85 : 126,627.70 = 31,136.86 : x
  2. Step 2: Convert to fraction form
    84,441.85/126,627.70 = 31,136.86/x
  3. Step 3: Cross multiply
    84,441.85x = 126,627.70 × 31,136.86
  4. Step 4: Simplify right side
    84,441.85x = 3,942,788,967.02
  5. Step 5: Solve for x
    x = 3,942,788,967.02/84,441.85
  6. Step 6: Final answer
    x = 46,692.36

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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.