Home / 81,451.14-122,101.53-56,502.96

Finding the Fourth Proportional to 81,451.14, 122,101.53 and 56,502.96

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Solution

The fourth proportional to 81,451.14, 122,101.53 and 56,502.96 is: 84,702.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,451.14 : 122,101.53 = 56,502.96 : x
  2. Step 2: Convert to fraction form
    81,451.14/122,101.53 = 56,502.96/x
  3. Step 3: Cross multiply
    81,451.14x = 122,101.53 × 56,502.96
  4. Step 4: Simplify right side
    81,451.14x = 6,899,097,865.53
  5. Step 5: Solve for x
    x = 6,899,097,865.53/81,451.14
  6. Step 6: Final answer
    x = 84,702.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.