Home / 115,428.85-173,161.50-48,869.40

Finding the Fourth Proportional to 115,428.85, 173,161.50 and 48,869.40

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Solution

The fourth proportional to 115,428.85, 173,161.50 and 48,869.40 is: 73,311.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,428.85 : 173,161.50 = 48,869.40 : x
  2. Step 2: Convert to fraction form
    115,428.85/173,161.50 = 48,869.40/x
  3. Step 3: Cross multiply
    115,428.85x = 173,161.50 × 48,869.40
  4. Step 4: Simplify right side
    115,428.85x = 8,462,298,608.10
  5. Step 5: Solve for x
    x = 8,462,298,608.10/115,428.85
  6. Step 6: Final answer
    x = 73,311.82

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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.