Home / 259,036.19-388,576.15-72,047.69

Finding the Fourth Proportional to 259,036.19, 388,576.15 and 72,047.69

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Solution

The fourth proportional to 259,036.19, 388,576.15 and 72,047.69 is: 108,077.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,036.19 : 388,576.15 = 72,047.69 : x
  2. Step 2: Convert to fraction form
    259,036.19/388,576.15 = 72,047.69/x
  3. Step 3: Cross multiply
    259,036.19x = 388,576.15 × 72,047.69
  4. Step 4: Simplify right side
    259,036.19x = 27,996,013,996.59
  5. Step 5: Solve for x
    x = 27,996,013,996.59/259,036.19
  6. Step 6: Final answer
    x = 108,077.62

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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.