Home / 76,555.59-114,818.33-72,758.03

Finding the Fourth Proportional to 76,555.59, 114,818.33 and 72,758.03

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Solution

The fourth proportional to 76,555.59, 114,818.33 and 72,758.03 is: 109,122.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,555.59 : 114,818.33 = 72,758.03 : x
  2. Step 2: Convert to fraction form
    76,555.59/114,818.33 = 72,758.03/x
  3. Step 3: Cross multiply
    76,555.59x = 114,818.33 × 72,758.03
  4. Step 4: Simplify right side
    76,555.59x = 8,353,954,560.81
  5. Step 5: Solve for x
    x = 8,353,954,560.81/76,555.59
  6. Step 6: Final answer
    x = 109,122.72

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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.