Home / 82,558.80-113,672.16-72,858.24

Finding the Fourth Proportional to 82,558.80, 113,672.16 and 72,858.24

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Solution

The fourth proportional to 82,558.80, 113,672.16 and 72,858.24 is: 100,315.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,558.80 : 113,672.16 = 72,858.24 : x
  2. Step 2: Convert to fraction form
    82,558.80/113,672.16 = 72,858.24/x
  3. Step 3: Cross multiply
    82,558.80x = 113,672.16 × 72,858.24
  4. Step 4: Simplify right side
    82,558.80x = 8,281,953,514.60
  5. Step 5: Solve for x
    x = 8,281,953,514.60/82,558.80
  6. Step 6: Final answer
    x = 100,315.82

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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.