Home / 74,916.53-112,379.11-28,169.81

Finding the Fourth Proportional to 74,916.53, 112,379.11 and 28,169.81

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Solution

The fourth proportional to 74,916.53, 112,379.11 and 28,169.81 is: 42,256.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,916.53 : 112,379.11 = 28,169.81 : x
  2. Step 2: Convert to fraction form
    74,916.53/112,379.11 = 28,169.81/x
  3. Step 3: Cross multiply
    74,916.53x = 112,379.11 × 28,169.81
  4. Step 4: Simplify right side
    74,916.53x = 3,165,698,176.67
  5. Step 5: Solve for x
    x = 3,165,698,176.67/74,916.53
  6. Step 6: Final answer
    x = 42,256.34

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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.