Home / 84,456.07-126,431.54-51,075.11

Finding the Fourth Proportional to 84,456.07, 126,431.54 and 51,075.11

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Solution

The fourth proportional to 84,456.07, 126,431.54 and 51,075.11 is: 76,459.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,456.07 : 126,431.54 = 51,075.11 : x
  2. Step 2: Convert to fraction form
    84,456.07/126,431.54 = 51,075.11/x
  3. Step 3: Cross multiply
    84,456.07x = 126,431.54 × 51,075.11
  4. Step 4: Simplify right side
    84,456.07x = 6,457,504,812.97
  5. Step 5: Solve for x
    x = 6,457,504,812.97/84,456.07
  6. Step 6: Final answer
    x = 76,459.93

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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.