Home / 42,004.87-63,079.21-28,054.54

Finding the Fourth Proportional to 42,004.87, 63,079.21 and 28,054.54

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Solution

The fourth proportional to 42,004.87, 63,079.21 and 28,054.54 is: 42,129.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,004.87 : 63,079.21 = 28,054.54 : x
  2. Step 2: Convert to fraction form
    42,004.87/63,079.21 = 28,054.54/x
  3. Step 3: Cross multiply
    42,004.87x = 63,079.21 × 28,054.54
  4. Step 4: Simplify right side
    42,004.87x = 1,769,657,904.72
  5. Step 5: Solve for x
    x = 1,769,657,904.72/42,004.87
  6. Step 6: Final answer
    x = 42,129.83

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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.