Home / 72,305.15-108,269.09-58,188.06

Finding the Fourth Proportional to 72,305.15, 108,269.09 and 58,188.06

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Solution

The fourth proportional to 72,305.15, 108,269.09 and 58,188.06 is: 87,130.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,305.15 : 108,269.09 = 58,188.06 : x
  2. Step 2: Convert to fraction form
    72,305.15/108,269.09 = 58,188.06/x
  3. Step 3: Cross multiply
    72,305.15x = 108,269.09 × 58,188.06
  4. Step 4: Simplify right side
    72,305.15x = 6,299,968,232.33
  5. Step 5: Solve for x
    x = 6,299,968,232.33/72,305.15
  6. Step 6: Final answer
    x = 87,130.29

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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.