Home / 70,749.69-97,634.05-38,917.90

Finding the Fourth Proportional to 70,749.69, 97,634.05 and 38,917.90

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Solution

The fourth proportional to 70,749.69, 97,634.05 and 38,917.90 is: 53,706.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,749.69 : 97,634.05 = 38,917.90 : x
  2. Step 2: Convert to fraction form
    70,749.69/97,634.05 = 38,917.90/x
  3. Step 3: Cross multiply
    70,749.69x = 97,634.05 × 38,917.90
  4. Step 4: Simplify right side
    70,749.69x = 3,799,712,194.50
  5. Step 5: Solve for x
    x = 3,799,712,194.50/70,749.69
  6. Step 6: Final answer
    x = 53,706.41

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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.