Home / 51,880.89-71,597.55-28,912.79

Finding the Fourth Proportional to 51,880.89, 71,597.55 and 28,912.79

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Solution

The fourth proportional to 51,880.89, 71,597.55 and 28,912.79 is: 39,900.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,880.89 : 71,597.55 = 28,912.79 : x
  2. Step 2: Convert to fraction form
    51,880.89/71,597.55 = 28,912.79/x
  3. Step 3: Cross multiply
    51,880.89x = 71,597.55 × 28,912.79
  4. Step 4: Simplify right side
    51,880.89x = 2,070,084,927.66
  5. Step 5: Solve for x
    x = 2,070,084,927.66/51,880.89
  6. Step 6: Final answer
    x = 39,900.72

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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.