Home / 45,450.81-68,149.13-18,776.07

Finding the Fourth Proportional to 45,450.81, 68,149.13 and 18,776.07

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Solution

The fourth proportional to 45,450.81, 68,149.13 and 18,776.07 is: 28,152.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,450.81 : 68,149.13 = 18,776.07 : x
  2. Step 2: Convert to fraction form
    45,450.81/68,149.13 = 18,776.07/x
  3. Step 3: Cross multiply
    45,450.81x = 68,149.13 × 18,776.07
  4. Step 4: Simplify right side
    45,450.81x = 1,279,572,741.44
  5. Step 5: Solve for x
    x = 1,279,572,741.44/45,450.81
  6. Step 6: Final answer
    x = 28,152.91

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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.