Home / 82,511.42-113,661.69-70,372.22

Finding the Fourth Proportional to 82,511.42, 113,661.69 and 70,372.22

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Solution

The fourth proportional to 82,511.42, 113,661.69 and 70,372.22 is: 96,939.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,511.42 : 113,661.69 = 70,372.22 : x
  2. Step 2: Convert to fraction form
    82,511.42/113,661.69 = 70,372.22/x
  3. Step 3: Cross multiply
    82,511.42x = 113,661.69 × 70,372.22
  4. Step 4: Simplify right side
    82,511.42x = 7,998,625,454.25
  5. Step 5: Solve for x
    x = 7,998,625,454.25/82,511.42
  6. Step 6: Final answer
    x = 96,939.62

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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.