Home / 45,213.81-67,810.96-28,551.58

Finding the Fourth Proportional to 45,213.81, 67,810.96 and 28,551.58

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Solution

The fourth proportional to 45,213.81, 67,810.96 and 28,551.58 is: 42,821.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,213.81 : 67,810.96 = 28,551.58 : x
  2. Step 2: Convert to fraction form
    45,213.81/67,810.96 = 28,551.58/x
  3. Step 3: Cross multiply
    45,213.81x = 67,810.96 × 28,551.58
  4. Step 4: Simplify right side
    45,213.81x = 1,936,110,049.32
  5. Step 5: Solve for x
    x = 1,936,110,049.32/45,213.81
  6. Step 6: Final answer
    x = 42,821.21

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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.