Home / 81,096.58-121,534.21-51,461.29

Finding the Fourth Proportional to 81,096.58, 121,534.21 and 51,461.29

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Solution

The fourth proportional to 81,096.58, 121,534.21 and 51,461.29 is: 77,121.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,096.58 : 121,534.21 = 51,461.29 : x
  2. Step 2: Convert to fraction form
    81,096.58/121,534.21 = 51,461.29/x
  3. Step 3: Cross multiply
    81,096.58x = 121,534.21 × 51,461.29
  4. Step 4: Simplify right side
    81,096.58x = 6,254,307,225.73
  5. Step 5: Solve for x
    x = 6,254,307,225.73/81,096.58
  6. Step 6: Final answer
    x = 77,121.71

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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.