Home / 75,622.20-113,318.10-63,871.80

Finding the Fourth Proportional to 75,622.20, 113,318.10 and 63,871.80

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Solution

The fourth proportional to 75,622.20, 113,318.10 and 63,871.80 is: 95,710.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,622.20 : 113,318.10 = 63,871.80 : x
  2. Step 2: Convert to fraction form
    75,622.20/113,318.10 = 63,871.80/x
  3. Step 3: Cross multiply
    75,622.20x = 113,318.10 × 63,871.80
  4. Step 4: Simplify right side
    75,622.20x = 7,237,831,019.58
  5. Step 5: Solve for x
    x = 7,237,831,019.58/75,622.20
  6. Step 6: Final answer
    x = 95,710.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.