Home / 51,251.09-70,726.61-28,589.51

Finding the Fourth Proportional to 51,251.09, 70,726.61 and 28,589.51

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Solution

The fourth proportional to 51,251.09, 70,726.61 and 28,589.51 is: 39,453.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,251.09 : 70,726.61 = 28,589.51 : x
  2. Step 2: Convert to fraction form
    51,251.09/70,726.61 = 28,589.51/x
  3. Step 3: Cross multiply
    51,251.09x = 70,726.61 × 28,589.51
  4. Step 4: Simplify right side
    51,251.09x = 2,022,039,372.15
  5. Step 5: Solve for x
    x = 2,022,039,372.15/51,251.09
  6. Step 6: Final answer
    x = 39,453.59

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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.