Home / 72,835.07-109,252.86-20,244.50

Finding the Fourth Proportional to 72,835.07, 109,252.86 and 20,244.50

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Solution

The fourth proportional to 72,835.07, 109,252.86 and 20,244.50 is: 30,366.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,835.07 : 109,252.86 = 20,244.50 : x
  2. Step 2: Convert to fraction form
    72,835.07/109,252.86 = 20,244.50/x
  3. Step 3: Cross multiply
    72,835.07x = 109,252.86 × 20,244.50
  4. Step 4: Simplify right side
    72,835.07x = 2,211,769,721.49
  5. Step 5: Solve for x
    x = 2,211,769,721.49/72,835.07
  6. Step 6: Final answer
    x = 30,366.82

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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.