Home / 77,685.80-116,511.28-30,302.04

Finding the Fourth Proportional to 77,685.80, 116,511.28 and 30,302.04

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Solution

The fourth proportional to 77,685.80, 116,511.28 and 30,302.04 is: 45,446.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,685.80 : 116,511.28 = 30,302.04 : x
  2. Step 2: Convert to fraction form
    77,685.80/116,511.28 = 30,302.04/x
  3. Step 3: Cross multiply
    77,685.80x = 116,511.28 × 30,302.04
  4. Step 4: Simplify right side
    77,685.80x = 3,530,529,467.01
  5. Step 5: Solve for x
    x = 3,530,529,467.01/77,685.80
  6. Step 6: Final answer
    x = 45,446.27

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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.