Home / 51,027.81-70,412.87-28,367.78

Finding the Fourth Proportional to 51,027.81, 70,412.87 and 28,367.78

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Solution

The fourth proportional to 51,027.81, 70,412.87 and 28,367.78 is: 39,144.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,027.81 : 70,412.87 = 28,367.78 : x
  2. Step 2: Convert to fraction form
    51,027.81/70,412.87 = 28,367.78/x
  3. Step 3: Cross multiply
    51,027.81x = 70,412.87 × 28,367.78
  4. Step 4: Simplify right side
    51,027.81x = 1,997,456,311.43
  5. Step 5: Solve for x
    x = 1,997,456,311.43/51,027.81
  6. Step 6: Final answer
    x = 39,144.46

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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.