Home / 71,473.19-98,630.48-39,645.05

Finding the Fourth Proportional to 71,473.19, 98,630.48 and 39,645.05

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Solution

The fourth proportional to 71,473.19, 98,630.48 and 39,645.05 is: 54,708.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,473.19 : 98,630.48 = 39,645.05 : x
  2. Step 2: Convert to fraction form
    71,473.19/98,630.48 = 39,645.05/x
  3. Step 3: Cross multiply
    71,473.19x = 98,630.48 × 39,645.05
  4. Step 4: Simplify right side
    71,473.19x = 3,910,209,619.75
  5. Step 5: Solve for x
    x = 3,910,209,619.75/71,473.19
  6. Step 6: Final answer
    x = 54,708.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.