Home / 51,231.79-70,699.53-28,571.05

Finding the Fourth Proportional to 51,231.79, 70,699.53 and 28,571.05

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Solution

The fourth proportional to 51,231.79, 70,699.53 and 28,571.05 is: 39,427.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,231.79 : 70,699.53 = 28,571.05 : x
  2. Step 2: Convert to fraction form
    51,231.79/70,699.53 = 28,571.05/x
  3. Step 3: Cross multiply
    51,231.79x = 70,699.53 × 28,571.05
  4. Step 4: Simplify right side
    51,231.79x = 2,019,959,806.61
  5. Step 5: Solve for x
    x = 2,019,959,806.61/51,231.79
  6. Step 6: Final answer
    x = 39,427.86

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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.