Home / 51,520.95-71,103.42-28,859.58

Finding the Fourth Proportional to 51,520.95, 71,103.42 and 28,859.58

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Solution

The fourth proportional to 51,520.95, 71,103.42 and 28,859.58 is: 39,828.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,520.95 : 71,103.42 = 28,859.58 : x
  2. Step 2: Convert to fraction form
    51,520.95/71,103.42 = 28,859.58/x
  3. Step 3: Cross multiply
    51,520.95x = 71,103.42 × 28,859.58
  4. Step 4: Simplify right side
    51,520.95x = 2,052,014,837.76
  5. Step 5: Solve for x
    x = 2,052,014,837.76/51,520.95
  6. Step 6: Final answer
    x = 39,828.75

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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.