Home / 82,731.25-114,169.40-45,005.50

Finding the Fourth Proportional to 82,731.25, 114,169.40 and 45,005.50

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Solution

The fourth proportional to 82,731.25, 114,169.40 and 45,005.50 is: 62,107.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,731.25 : 114,169.40 = 45,005.50 : x
  2. Step 2: Convert to fraction form
    82,731.25/114,169.40 = 45,005.50/x
  3. Step 3: Cross multiply
    82,731.25x = 114,169.40 × 45,005.50
  4. Step 4: Simplify right side
    82,731.25x = 5,138,250,931.70
  5. Step 5: Solve for x
    x = 5,138,250,931.70/82,731.25
  6. Step 6: Final answer
    x = 62,107.74

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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.