Home / 51,040.95-70,436.40-28,379.22

Finding the Fourth Proportional to 51,040.95, 70,436.40 and 28,379.22

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Solution

The fourth proportional to 51,040.95, 70,436.40 and 28,379.22 is: 39,163.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,040.95 : 70,436.40 = 28,379.22 : x
  2. Step 2: Convert to fraction form
    51,040.95/70,436.40 = 28,379.22/x
  3. Step 3: Cross multiply
    51,040.95x = 70,436.40 × 28,379.22
  4. Step 4: Simplify right side
    51,040.95x = 1,998,930,091.61
  5. Step 5: Solve for x
    x = 1,998,930,091.61/51,040.95
  6. Step 6: Final answer
    x = 39,163.26

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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.