Home / 81,676.02-112,712.46-45,869.16

Finding the Fourth Proportional to 81,676.02, 112,712.46 and 45,869.16

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Solution

The fourth proportional to 81,676.02, 112,712.46 and 45,869.16 is: 63,299.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,676.02 : 112,712.46 = 45,869.16 : x
  2. Step 2: Convert to fraction form
    81,676.02/112,712.46 = 45,869.16/x
  3. Step 3: Cross multiply
    81,676.02x = 112,712.46 × 45,869.16
  4. Step 4: Simplify right side
    81,676.02x = 5,170,025,861.73
  5. Step 5: Solve for x
    x = 5,170,025,861.73/81,676.02
  6. Step 6: Final answer
    x = 63,299.19

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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.