Home / 51,238.76-70,709.33-28,577.78

Finding the Fourth Proportional to 51,238.76, 70,709.33 and 28,577.78

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Solution

The fourth proportional to 51,238.76, 70,709.33 and 28,577.78 is: 39,437.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,238.76 : 70,709.33 = 28,577.78 : x
  2. Step 2: Convert to fraction form
    51,238.76/70,709.33 = 28,577.78/x
  3. Step 3: Cross multiply
    51,238.76x = 70,709.33 × 28,577.78
  4. Step 4: Simplify right side
    51,238.76x = 2,020,715,676.69
  5. Step 5: Solve for x
    x = 2,020,715,676.69/51,238.76
  6. Step 6: Final answer
    x = 39,437.25

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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.