Home / 71,031.21-98,022.54-38,765.79

Finding the Fourth Proportional to 71,031.21, 98,022.54 and 38,765.79

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Solution

The fourth proportional to 71,031.21, 98,022.54 and 38,765.79 is: 53,496.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,031.21 : 98,022.54 = 38,765.79 : x
  2. Step 2: Convert to fraction form
    71,031.21/98,022.54 = 38,765.79/x
  3. Step 3: Cross multiply
    71,031.21x = 98,022.54 × 38,765.79
  4. Step 4: Simplify right side
    71,031.21x = 3,799,921,200.91
  5. Step 5: Solve for x
    x = 3,799,921,200.91/71,031.21
  6. Step 6: Final answer
    x = 53,496.50

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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.