Home / 74,514.88-102,832.48-40,981.76

Finding the Fourth Proportional to 74,514.88, 102,832.48 and 40,981.76

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Solution

The fourth proportional to 74,514.88, 102,832.48 and 40,981.76 is: 56,555.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,514.88 : 102,832.48 = 40,981.76 : x
  2. Step 2: Convert to fraction form
    74,514.88/102,832.48 = 40,981.76/x
  3. Step 3: Cross multiply
    74,514.88x = 102,832.48 × 40,981.76
  4. Step 4: Simplify right side
    74,514.88x = 4,214,256,015.56
  5. Step 5: Solve for x
    x = 4,214,256,015.56/74,514.88
  6. Step 6: Final answer
    x = 56,555.90

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1.5x scale

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.