Home / 77,772.70-116,529.45-73,107.10

Finding the Fourth Proportional to 77,772.70, 116,529.45 and 73,107.10

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Solution

The fourth proportional to 77,772.70, 116,529.45 and 73,107.10 is: 109,538.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,772.70 : 116,529.45 = 73,107.10 : x
  2. Step 2: Convert to fraction form
    77,772.70/116,529.45 = 73,107.10/x
  3. Step 3: Cross multiply
    77,772.70x = 116,529.45 × 73,107.10
  4. Step 4: Simplify right side
    77,772.70x = 8,519,130,154.10
  5. Step 5: Solve for x
    x = 8,519,130,154.10/77,772.70
  6. Step 6: Final answer
    x = 109,538.82

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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.