Home / 74,418.48-102,697.08-40,883.76

Finding the Fourth Proportional to 74,418.48, 102,697.08 and 40,883.76

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Solution

The fourth proportional to 74,418.48, 102,697.08 and 40,883.76 is: 56,419.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,418.48 : 102,697.08 = 40,883.76 : x
  2. Step 2: Convert to fraction form
    74,418.48/102,697.08 = 40,883.76/x
  3. Step 3: Cross multiply
    74,418.48x = 102,697.08 × 40,883.76
  4. Step 4: Simplify right side
    74,418.48x = 4,198,642,771.42
  5. Step 5: Solve for x
    x = 4,198,642,771.42/74,418.48
  6. Step 6: Final answer
    x = 56,419.36

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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.