Home / 82,765.40-114,215.82-45,039.92

Finding the Fourth Proportional to 82,765.40, 114,215.82 and 45,039.92

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Solution

The fourth proportional to 82,765.40, 114,215.82 and 45,039.92 is: 62,154.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,765.40 : 114,215.82 = 45,039.92 : x
  2. Step 2: Convert to fraction form
    82,765.40/114,215.82 = 45,039.92/x
  3. Step 3: Cross multiply
    82,765.40x = 114,215.82 × 45,039.92
  4. Step 4: Simplify right side
    82,765.40x = 5,144,271,395.53
  5. Step 5: Solve for x
    x = 5,144,271,395.53/82,765.40
  6. Step 6: Final answer
    x = 62,154.85

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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.