Home / 81,267.28-112,103.70-47,271.94

Finding the Fourth Proportional to 81,267.28, 112,103.70 and 47,271.94

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Solution

The fourth proportional to 81,267.28, 112,103.70 and 47,271.94 is: 65,209.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,267.28 : 112,103.70 = 47,271.94 : x
  2. Step 2: Convert to fraction form
    81,267.28/112,103.70 = 47,271.94/x
  3. Step 3: Cross multiply
    81,267.28x = 112,103.70 × 47,271.94
  4. Step 4: Simplify right side
    81,267.28x = 5,299,359,380.18
  5. Step 5: Solve for x
    x = 5,299,359,380.18/81,267.28
  6. Step 6: Final answer
    x = 65,209.02

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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.