Home / 70,820.29-97,709.94-40,188.31

Finding the Fourth Proportional to 70,820.29, 97,709.94 and 40,188.31

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Solution

The fourth proportional to 70,820.29, 97,709.94 and 40,188.31 is: 55,447.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,820.29 : 97,709.94 = 40,188.31 : x
  2. Step 2: Convert to fraction form
    70,820.29/97,709.94 = 40,188.31/x
  3. Step 3: Cross multiply
    70,820.29x = 97,709.94 × 40,188.31
  4. Step 4: Simplify right side
    70,820.29x = 3,926,797,358.80
  5. Step 5: Solve for x
    x = 3,926,797,358.80/70,820.29
  6. Step 6: Final answer
    x = 55,447.35

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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.