Home / 74,916.19-112,378.60-28,169.47

Finding the Fourth Proportional to 74,916.19, 112,378.60 and 28,169.47

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Solution

The fourth proportional to 74,916.19, 112,378.60 and 28,169.47 is: 42,255.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,916.19 : 112,378.60 = 28,169.47 : x
  2. Step 2: Convert to fraction form
    74,916.19/112,378.60 = 28,169.47/x
  3. Step 3: Cross multiply
    74,916.19x = 112,378.60 × 28,169.47
  4. Step 4: Simplify right side
    74,916.19x = 3,165,644,898.60
  5. Step 5: Solve for x
    x = 3,165,644,898.60/74,916.19
  6. Step 6: Final answer
    x = 42,255.82

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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.