Home / 72,916.32-109,379.84-26,169.60

Finding the Fourth Proportional to 72,916.32, 109,379.84 and 26,169.60

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Solution

The fourth proportional to 72,916.32, 109,379.84 and 26,169.60 is: 39,256.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,916.32 : 109,379.84 = 26,169.60 : x
  2. Step 2: Convert to fraction form
    72,916.32/109,379.84 = 26,169.60/x
  3. Step 3: Cross multiply
    72,916.32x = 109,379.84 × 26,169.60
  4. Step 4: Simplify right side
    72,916.32x = 2,862,426,660.86
  5. Step 5: Solve for x
    x = 2,862,426,660.86/72,916.32
  6. Step 6: Final answer
    x = 39,256.32

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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.