Home / 82,869.21-114,354.12-48,869.90

Finding the Fourth Proportional to 82,869.21, 114,354.12 and 48,869.90

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Solution

The fourth proportional to 82,869.21, 114,354.12 and 48,869.90 is: 67,437.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,869.21 : 114,354.12 = 48,869.90 : x
  2. Step 2: Convert to fraction form
    82,869.21/114,354.12 = 48,869.90/x
  3. Step 3: Cross multiply
    82,869.21x = 114,354.12 × 48,869.90
  4. Step 4: Simplify right side
    82,869.21x = 5,588,474,633.48
  5. Step 5: Solve for x
    x = 5,588,474,633.48/82,869.21
  6. Step 6: Final answer
    x = 67,437.29

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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.