Home / 77,174.36-116,339.94-72,030.62

Finding the Fourth Proportional to 77,174.36, 116,339.94 and 72,030.62

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Solution

The fourth proportional to 77,174.36, 116,339.94 and 72,030.62 is: 108,585.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,174.36 : 116,339.94 = 72,030.62 : x
  2. Step 2: Convert to fraction form
    77,174.36/116,339.94 = 72,030.62/x
  3. Step 3: Cross multiply
    77,174.36x = 116,339.94 × 72,030.62
  4. Step 4: Simplify right side
    77,174.36x = 8,380,038,008.96
  5. Step 5: Solve for x
    x = 8,380,038,008.96/77,174.36
  6. Step 6: Final answer
    x = 108,585.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.