Home / 56,771.35-78,347.96-31,620.85

Finding the Fourth Proportional to 56,771.35, 78,347.96 and 31,620.85

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Solution

The fourth proportional to 56,771.35, 78,347.96 and 31,620.85 is: 43,638.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,771.35 : 78,347.96 = 31,620.85 : x
  2. Step 2: Convert to fraction form
    56,771.35/78,347.96 = 31,620.85/x
  3. Step 3: Cross multiply
    56,771.35x = 78,347.96 × 31,620.85
  4. Step 4: Simplify right side
    56,771.35x = 2,477,428,855.57
  5. Step 5: Solve for x
    x = 2,477,428,855.57/56,771.35
  6. Step 6: Final answer
    x = 43,638.72

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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.