Home / 51,928.51-71,661.66-28,959.78

Finding the Fourth Proportional to 51,928.51, 71,661.66 and 28,959.78

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Solution

The fourth proportional to 51,928.51, 71,661.66 and 28,959.78 is: 39,964.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,928.51 : 71,661.66 = 28,959.78 : x
  2. Step 2: Convert to fraction form
    51,928.51/71,661.66 = 28,959.78/x
  3. Step 3: Cross multiply
    51,928.51x = 71,661.66 × 28,959.78
  4. Step 4: Simplify right side
    51,928.51x = 2,075,306,140.57
  5. Step 5: Solve for x
    x = 2,075,306,140.57/51,928.51
  6. Step 6: Final answer
    x = 39,964.68

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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.