Home / 84,346.32-126,538.68-28,938.96

Finding the Fourth Proportional to 84,346.32, 126,538.68 and 28,938.96

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Solution

The fourth proportional to 84,346.32, 126,538.68 and 28,938.96 is: 43,415.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,346.32 : 126,538.68 = 28,938.96 : x
  2. Step 2: Convert to fraction form
    84,346.32/126,538.68 = 28,938.96/x
  3. Step 3: Cross multiply
    84,346.32x = 126,538.68 × 28,938.96
  4. Step 4: Simplify right side
    84,346.32x = 3,661,897,798.97
  5. Step 5: Solve for x
    x = 3,661,897,798.97/84,346.32
  6. Step 6: Final answer
    x = 43,415.03

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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.