Home / 82,235.28-113,486.76-50,421.72

Finding the Fourth Proportional to 82,235.28, 113,486.76 and 50,421.72

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Solution

The fourth proportional to 82,235.28, 113,486.76 and 50,421.72 is: 69,583.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,235.28 : 113,486.76 = 50,421.72 : x
  2. Step 2: Convert to fraction form
    82,235.28/113,486.76 = 50,421.72/x
  3. Step 3: Cross multiply
    82,235.28x = 113,486.76 × 50,421.72
  4. Step 4: Simplify right side
    82,235.28x = 5,722,197,636.43
  5. Step 5: Solve for x
    x = 5,722,197,636.43/82,235.28
  6. Step 6: Final answer
    x = 69,583.25

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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.