Home / 84,459.04-126,436.14-51,078.13

Finding the Fourth Proportional to 84,459.04, 126,436.14 and 51,078.13

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Solution

The fourth proportional to 84,459.04, 126,436.14 and 51,078.13 is: 76,464.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,459.04 : 126,436.14 = 51,078.13 : x
  2. Step 2: Convert to fraction form
    84,459.04/126,436.14 = 51,078.13/x
  3. Step 3: Cross multiply
    84,459.04x = 126,436.14 × 51,078.13
  4. Step 4: Simplify right side
    84,459.04x = 6,458,121,595.62
  5. Step 5: Solve for x
    x = 6,458,121,595.62/84,459.04
  6. Step 6: Final answer
    x = 76,464.54

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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.