Home / 70,412.96-97,178.92-40,191.35

Finding the Fourth Proportional to 70,412.96, 97,178.92 and 40,191.35

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Solution

The fourth proportional to 70,412.96, 97,178.92 and 40,191.35 is: 55,469.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,412.96 : 97,178.92 = 40,191.35 : x
  2. Step 2: Convert to fraction form
    70,412.96/97,178.92 = 40,191.35/x
  3. Step 3: Cross multiply
    70,412.96x = 97,178.92 × 40,191.35
  4. Step 4: Simplify right side
    70,412.96x = 3,905,752,128.81
  5. Step 5: Solve for x
    x = 3,905,752,128.81/70,412.96
  6. Step 6: Final answer
    x = 55,469.23

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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.