Home / 57,011.88-78,669.58-31,514.81

Finding the Fourth Proportional to 57,011.88, 78,669.58 and 31,514.81

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Solution

The fourth proportional to 57,011.88, 78,669.58 and 31,514.81 is: 43,486.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,011.88 : 78,669.58 = 31,514.81 : x
  2. Step 2: Convert to fraction form
    57,011.88/78,669.58 = 31,514.81/x
  3. Step 3: Cross multiply
    57,011.88x = 78,669.58 × 31,514.81
  4. Step 4: Simplify right side
    57,011.88x = 2,479,256,708.91
  5. Step 5: Solve for x
    x = 2,479,256,708.91/57,011.88
  6. Step 6: Final answer
    x = 43,486.67

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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.