Home / 51,105.30-70,525.21-28,749.30

Finding the Fourth Proportional to 51,105.30, 70,525.21 and 28,749.30

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Solution

The fourth proportional to 51,105.30, 70,525.21 and 28,749.30 is: 39,673.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,105.30 : 70,525.21 = 28,749.30 : x
  2. Step 2: Convert to fraction form
    51,105.30/70,525.21 = 28,749.30/x
  3. Step 3: Cross multiply
    51,105.30x = 70,525.21 × 28,749.30
  4. Step 4: Simplify right side
    51,105.30x = 2,027,550,419.85
  5. Step 5: Solve for x
    x = 2,027,550,419.85/51,105.30
  6. Step 6: Final answer
    x = 39,673.98

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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.