Home / 82,209.78-113,346.24-67,087.08

Finding the Fourth Proportional to 82,209.78, 113,346.24 and 67,087.08

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Solution

The fourth proportional to 82,209.78, 113,346.24 and 67,087.08 is: 92,495.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,209.78 : 113,346.24 = 67,087.08 : x
  2. Step 2: Convert to fraction form
    82,209.78/113,346.24 = 67,087.08/x
  3. Step 3: Cross multiply
    82,209.78x = 113,346.24 × 67,087.08
  4. Step 4: Simplify right side
    82,209.78x = 7,604,068,270.58
  5. Step 5: Solve for x
    x = 7,604,068,270.58/82,209.78
  6. Step 6: Final answer
    x = 92,495.91

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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.