Home / 77,463.37-115,901.83-45,890.38

Finding the Fourth Proportional to 77,463.37, 115,901.83 and 45,890.38

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Solution

The fourth proportional to 77,463.37, 115,901.83 and 45,890.38 is: 68,661.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,463.37 : 115,901.83 = 45,890.38 : x
  2. Step 2: Convert to fraction form
    77,463.37/115,901.83 = 45,890.38/x
  3. Step 3: Cross multiply
    77,463.37x = 115,901.83 × 45,890.38
  4. Step 4: Simplify right side
    77,463.37x = 5,318,779,021.40
  5. Step 5: Solve for x
    x = 5,318,779,021.40/77,463.37
  6. Step 6: Final answer
    x = 68,661.86

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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.