Home / 75,624.70-113,428.40-20,225.02

Finding the Fourth Proportional to 75,624.70, 113,428.40 and 20,225.02

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Solution

The fourth proportional to 75,624.70, 113,428.40 and 20,225.02 is: 30,335.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,624.70 : 113,428.40 = 20,225.02 : x
  2. Step 2: Convert to fraction form
    75,624.70/113,428.40 = 20,225.02/x
  3. Step 3: Cross multiply
    75,624.70x = 113,428.40 × 20,225.02
  4. Step 4: Simplify right side
    75,624.70x = 2,294,091,658.57
  5. Step 5: Solve for x
    x = 2,294,091,658.57/75,624.70
  6. Step 6: Final answer
    x = 30,335.22

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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.