Home / 72,087.03-108,054-42,518.79

Finding the Fourth Proportional to 72,087.03, 108,054 and 42,518.79

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Solution

The fourth proportional to 72,087.03, 108,054 and 42,518.79 is: 63,733.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,087.03 : 108,054 = 42,518.79 : x
  2. Step 2: Convert to fraction form
    72,087.03/108,054 = 42,518.79/x
  3. Step 3: Cross multiply
    72,087.03x = 108,054 × 42,518.79
  4. Step 4: Simplify right side
    72,087.03x = 4,594,325,334.66
  5. Step 5: Solve for x
    x = 4,594,325,334.66/72,087.03
  6. Step 6: Final answer
    x = 63,733.04

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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.