Home / 45,919.59-68,871.30-12,631.62

Finding the Fourth Proportional to 45,919.59, 68,871.30 and 12,631.62

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Solution

The fourth proportional to 45,919.59, 68,871.30 and 12,631.62 is: 18,945.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,919.59 : 68,871.30 = 12,631.62 : x
  2. Step 2: Convert to fraction form
    45,919.59/68,871.30 = 12,631.62/x
  3. Step 3: Cross multiply
    45,919.59x = 68,871.30 × 12,631.62
  4. Step 4: Simplify right side
    45,919.59x = 869,956,090.51
  5. Step 5: Solve for x
    x = 869,956,090.51/45,919.59
  6. Step 6: Final answer
    x = 18,945.21

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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.