Home / 74,599.28-111,897.80-18,439.38

Finding the Fourth Proportional to 74,599.28, 111,897.80 and 18,439.38

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Solution

The fourth proportional to 74,599.28, 111,897.80 and 18,439.38 is: 27,658.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,599.28 : 111,897.80 = 18,439.38 : x
  2. Step 2: Convert to fraction form
    74,599.28/111,897.80 = 18,439.38/x
  3. Step 3: Cross multiply
    74,599.28x = 111,897.80 × 18,439.38
  4. Step 4: Simplify right side
    74,599.28x = 2,063,326,055.36
  5. Step 5: Solve for x
    x = 2,063,326,055.36/74,599.28
  6. Step 6: Final answer
    x = 27,658.79

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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.