Home / 70,619.45-97,456.37-38,790.09

Finding the Fourth Proportional to 70,619.45, 97,456.37 and 38,790.09

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Solution

The fourth proportional to 70,619.45, 97,456.37 and 38,790.09 is: 53,531.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,619.45 : 97,456.37 = 38,790.09 : x
  2. Step 2: Convert to fraction form
    70,619.45/97,456.37 = 38,790.09/x
  3. Step 3: Cross multiply
    70,619.45x = 97,456.37 × 38,790.09
  4. Step 4: Simplify right side
    70,619.45x = 3,780,341,169.42
  5. Step 5: Solve for x
    x = 3,780,341,169.42/70,619.45
  6. Step 6: Final answer
    x = 53,531.17

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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.