Home / 51,228.87-70,696.15-28,569.29

Finding the Fourth Proportional to 51,228.87, 70,696.15 and 28,569.29

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Solution

The fourth proportional to 51,228.87, 70,696.15 and 28,569.29 is: 39,425.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,228.87 : 70,696.15 = 28,569.29 : x
  2. Step 2: Convert to fraction form
    51,228.87/70,696.15 = 28,569.29/x
  3. Step 3: Cross multiply
    51,228.87x = 70,696.15 × 28,569.29
  4. Step 4: Simplify right side
    51,228.87x = 2,019,738,811.23
  5. Step 5: Solve for x
    x = 2,019,738,811.23/51,228.87
  6. Step 6: Final answer
    x = 39,425.79

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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.