Home / 115,709.40-173,530.08-49,149

Finding the Fourth Proportional to 115,709.40, 173,530.08 and 49,149

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Solution

The fourth proportional to 115,709.40, 173,530.08 and 49,149 is: 73,709.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,709.40 : 173,530.08 = 49,149 : x
  2. Step 2: Convert to fraction form
    115,709.40/173,530.08 = 49,149/x
  3. Step 3: Cross multiply
    115,709.40x = 173,530.08 × 49,149
  4. Step 4: Simplify right side
    115,709.40x = 8,528,829,901.92
  5. Step 5: Solve for x
    x = 8,528,829,901.92/115,709.40
  6. Step 6: Final answer
    x = 73,709.05

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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.