Home / 49,478.96-74,218.50-12,039.04

Finding the Fourth Proportional to 49,478.96, 74,218.50 and 12,039.04

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Solution

The fourth proportional to 49,478.96, 74,218.50 and 12,039.04 is: 18,058.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,478.96 : 74,218.50 = 12,039.04 : x
  2. Step 2: Convert to fraction form
    49,478.96/74,218.50 = 12,039.04/x
  3. Step 3: Cross multiply
    49,478.96x = 74,218.50 × 12,039.04
  4. Step 4: Simplify right side
    49,478.96x = 893,519,408.13
  5. Step 5: Solve for x
    x = 893,519,408.13/49,478.96
  6. Step 6: Final answer
    x = 18,058.57

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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.