Home / 81,515.96-112,493.17-49,246.09

Finding the Fourth Proportional to 81,515.96, 112,493.17 and 49,246.09

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Solution

The fourth proportional to 81,515.96, 112,493.17 and 49,246.09 is: 67,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,515.96 : 112,493.17 = 49,246.09 : x
  2. Step 2: Convert to fraction form
    81,515.96/112,493.17 = 49,246.09/x
  3. Step 3: Cross multiply
    81,515.96x = 112,493.17 × 49,246.09
  4. Step 4: Simplify right side
    81,515.96x = 5,539,848,897.32
  5. Step 5: Solve for x
    x = 5,539,848,897.32/81,515.96
  6. Step 6: Final answer
    x = 67,960.30

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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.