Home / 77,182.17-106,409.30-55,653.90

Finding the Fourth Proportional to 77,182.17, 106,409.30 and 55,653.90

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Solution

The fourth proportional to 77,182.17, 106,409.30 and 55,653.90 is: 76,728.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,182.17 : 106,409.30 = 55,653.90 : x
  2. Step 2: Convert to fraction form
    77,182.17/106,409.30 = 55,653.90/x
  3. Step 3: Cross multiply
    77,182.17x = 106,409.30 × 55,653.90
  4. Step 4: Simplify right side
    77,182.17x = 5,922,092,263.00
  5. Step 5: Solve for x
    x = 5,922,092,263.00/77,182.17
  6. Step 6: Final answer
    x = 76,728.76

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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.