Home / 84,281.34-126,347.80-34,403.37

Finding the Fourth Proportional to 84,281.34, 126,347.80 and 34,403.37

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Solution

The fourth proportional to 84,281.34, 126,347.80 and 34,403.37 is: 51,574.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,281.34 : 126,347.80 = 34,403.37 : x
  2. Step 2: Convert to fraction form
    84,281.34/126,347.80 = 34,403.37/x
  3. Step 3: Cross multiply
    84,281.34x = 126,347.80 × 34,403.37
  4. Step 4: Simplify right side
    84,281.34x = 4,346,790,112.09
  5. Step 5: Solve for x
    x = 4,346,790,112.09/84,281.34
  6. Step 6: Final answer
    x = 51,574.76

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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.