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Finding the Fourth Proportional to 72,804.20, 100,454.30 and 42,583.62

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Solution

The fourth proportional to 72,804.20, 100,454.30 and 42,583.62 is: 58,756.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,804.20 : 100,454.30 = 42,583.62 : x
  2. Step 2: Convert to fraction form
    72,804.20/100,454.30 = 42,583.62/x
  3. Step 3: Cross multiply
    72,804.20x = 100,454.30 × 42,583.62
  4. Step 4: Simplify right side
    72,804.20x = 4,277,707,738.57
  5. Step 5: Solve for x
    x = 4,277,707,738.57/72,804.20
  6. Step 6: Final answer
    x = 58,756.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.