Home / 102,777.28-141,826.86-57,446.24

Finding the Fourth Proportional to 102,777.28, 141,826.86 and 57,446.24

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Solution

The fourth proportional to 102,777.28, 141,826.86 and 57,446.24 is: 79,272.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,777.28 : 141,826.86 = 57,446.24 : x
  2. Step 2: Convert to fraction form
    102,777.28/141,826.86 = 57,446.24/x
  3. Step 3: Cross multiply
    102,777.28x = 141,826.86 × 57,446.24
  4. Step 4: Simplify right side
    102,777.28x = 8,147,419,128.87
  5. Step 5: Solve for x
    x = 8,147,419,128.87/102,777.28
  6. Step 6: Final answer
    x = 79,272.57

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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.