Home / 70,763.19-97,652.63-40,142.11

Finding the Fourth Proportional to 70,763.19, 97,652.63 and 40,142.11

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Solution

The fourth proportional to 70,763.19, 97,652.63 and 40,142.11 is: 55,395.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,763.19 : 97,652.63 = 40,142.11 : x
  2. Step 2: Convert to fraction form
    70,763.19/97,652.63 = 40,142.11/x
  3. Step 3: Cross multiply
    70,763.19x = 97,652.63 × 40,142.11
  4. Step 4: Simplify right side
    70,763.19x = 3,919,982,615.25
  5. Step 5: Solve for x
    x = 3,919,982,615.25/70,763.19
  6. Step 6: Final answer
    x = 55,395.79

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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.