Home / 51,420.48-70,960.07-28,759.38

Finding the Fourth Proportional to 51,420.48, 70,960.07 and 28,759.38

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Solution

The fourth proportional to 51,420.48, 70,960.07 and 28,759.38 is: 39,687.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,420.48 : 70,960.07 = 28,759.38 : x
  2. Step 2: Convert to fraction form
    51,420.48/70,960.07 = 28,759.38/x
  3. Step 3: Cross multiply
    51,420.48x = 70,960.07 × 28,759.38
  4. Step 4: Simplify right side
    51,420.48x = 2,040,767,474.16
  5. Step 5: Solve for x
    x = 2,040,767,474.16/51,420.48
  6. Step 6: Final answer
    x = 39,687.83

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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.