Home / 77,417.73-106,811.19-45,145.04

Finding the Fourth Proportional to 77,417.73, 106,811.19 and 45,145.04

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Solution

The fourth proportional to 77,417.73, 106,811.19 and 45,145.04 is: 62,285.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,417.73 : 106,811.19 = 45,145.04 : x
  2. Step 2: Convert to fraction form
    77,417.73/106,811.19 = 45,145.04/x
  3. Step 3: Cross multiply
    77,417.73x = 106,811.19 × 45,145.04
  4. Step 4: Simplify right side
    77,417.73x = 4,821,994,910.94
  5. Step 5: Solve for x
    x = 4,821,994,910.94/77,417.73
  6. Step 6: Final answer
    x = 62,285.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.