Home / 82,603.09-114,050.13-72,969.36

Finding the Fourth Proportional to 82,603.09, 114,050.13 and 72,969.36

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Solution

The fourth proportional to 82,603.09, 114,050.13 and 72,969.36 is: 100,748.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,603.09 : 114,050.13 = 72,969.36 : x
  2. Step 2: Convert to fraction form
    82,603.09/114,050.13 = 72,969.36/x
  3. Step 3: Cross multiply
    82,603.09x = 114,050.13 × 72,969.36
  4. Step 4: Simplify right side
    82,603.09x = 8,322,164,292.69
  5. Step 5: Solve for x
    x = 8,322,164,292.69/82,603.09
  6. Step 6: Final answer
    x = 100,748.82

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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.