Home / 74,128.21-102,294.71-42,296.29

Finding the Fourth Proportional to 74,128.21, 102,294.71 and 42,296.29

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Solution

The fourth proportional to 74,128.21, 102,294.71 and 42,296.29 is: 58,367.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,128.21 : 102,294.71 = 42,296.29 : x
  2. Step 2: Convert to fraction form
    74,128.21/102,294.71 = 42,296.29/x
  3. Step 3: Cross multiply
    74,128.21x = 102,294.71 × 42,296.29
  4. Step 4: Simplify right side
    74,128.21x = 4,326,686,508.14
  5. Step 5: Solve for x
    x = 4,326,686,508.14/74,128.21
  6. Step 6: Final answer
    x = 58,367.61

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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.