Home / 74,308.26-102,546.10-40,316.70

Finding the Fourth Proportional to 74,308.26, 102,546.10 and 40,316.70

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Solution

The fourth proportional to 74,308.26, 102,546.10 and 40,316.70 is: 55,637.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,308.26 : 102,546.10 = 40,316.70 : x
  2. Step 2: Convert to fraction form
    74,308.26/102,546.10 = 40,316.70/x
  3. Step 3: Cross multiply
    74,308.26x = 102,546.10 × 40,316.70
  4. Step 4: Simplify right side
    74,308.26x = 4,134,320,349.87
  5. Step 5: Solve for x
    x = 4,134,320,349.87/74,308.26
  6. Step 6: Final answer
    x = 55,637.43

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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.