Home / 57,279.16-79,043.77-31,785.42

Finding the Fourth Proportional to 57,279.16, 79,043.77 and 31,785.42

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Solution

The fourth proportional to 57,279.16, 79,043.77 and 31,785.42 is: 43,863.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,279.16 : 79,043.77 = 31,785.42 : x
  2. Step 2: Convert to fraction form
    57,279.16/79,043.77 = 31,785.42/x
  3. Step 3: Cross multiply
    57,279.16x = 79,043.77 × 31,785.42
  4. Step 4: Simplify right side
    57,279.16x = 2,512,439,427.83
  5. Step 5: Solve for x
    x = 2,512,439,427.83/57,279.16
  6. Step 6: Final answer
    x = 43,863.06

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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.