Home / 72,102.10-108,165.60-32,135.28

Finding the Fourth Proportional to 72,102.10, 108,165.60 and 32,135.28

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Solution

The fourth proportional to 72,102.10, 108,165.60 and 32,135.28 is: 48,208.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,102.10 : 108,165.60 = 32,135.28 : x
  2. Step 2: Convert to fraction form
    72,102.10/108,165.60 = 32,135.28/x
  3. Step 3: Cross multiply
    72,102.10x = 108,165.60 × 32,135.28
  4. Step 4: Simplify right side
    72,102.10x = 3,475,931,842.37
  5. Step 5: Solve for x
    x = 3,475,931,842.37/72,102.10
  6. Step 6: Final answer
    x = 48,208.47

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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.