Home / 74,204.48-102,412.68-45,919.28

Finding the Fourth Proportional to 74,204.48, 102,412.68 and 45,919.28

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Solution

The fourth proportional to 74,204.48, 102,412.68 and 45,919.28 is: 63,375.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,204.48 : 102,412.68 = 45,919.28 : x
  2. Step 2: Convert to fraction form
    74,204.48/102,412.68 = 45,919.28/x
  3. Step 3: Cross multiply
    74,204.48x = 102,412.68 × 45,919.28
  4. Step 4: Simplify right side
    74,204.48x = 4,702,716,528.47
  5. Step 5: Solve for x
    x = 4,702,716,528.47/74,204.48
  6. Step 6: Final answer
    x = 63,375.10

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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.