Home / 81,373.11-112,219.97-55,834.41

Finding the Fourth Proportional to 81,373.11, 112,219.97 and 55,834.41

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Solution

The fourth proportional to 81,373.11, 112,219.97 and 55,834.41 is: 77,000.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,373.11 : 112,219.97 = 55,834.41 : x
  2. Step 2: Convert to fraction form
    81,373.11/112,219.97 = 55,834.41/x
  3. Step 3: Cross multiply
    81,373.11x = 112,219.97 × 55,834.41
  4. Step 4: Simplify right side
    81,373.11x = 6,265,735,956.82
  5. Step 5: Solve for x
    x = 6,265,735,956.82/81,373.11
  6. Step 6: Final answer
    x = 77,000.08

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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.