Home / 45,120.21-67,657.53-26,405.87

Finding the Fourth Proportional to 45,120.21, 67,657.53 and 26,405.87

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Solution

The fourth proportional to 45,120.21, 67,657.53 and 26,405.87 is: 39,595.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,120.21 : 67,657.53 = 26,405.87 : x
  2. Step 2: Convert to fraction form
    45,120.21/67,657.53 = 26,405.87/x
  3. Step 3: Cross multiply
    45,120.21x = 67,657.53 × 26,405.87
  4. Step 4: Simplify right side
    45,120.21x = 1,786,555,805.56
  5. Step 5: Solve for x
    x = 1,786,555,805.56/45,120.21
  6. Step 6: Final answer
    x = 39,595.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.