Home / 79,640.51-109,898.24-47,373.35

Finding the Fourth Proportional to 79,640.51, 109,898.24 and 47,373.35

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Solution

The fourth proportional to 79,640.51, 109,898.24 and 47,373.35 is: 65,371.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,640.51 : 109,898.24 = 47,373.35 : x
  2. Step 2: Convert to fraction form
    79,640.51/109,898.24 = 47,373.35/x
  3. Step 3: Cross multiply
    79,640.51x = 109,898.24 × 47,373.35
  4. Step 4: Simplify right side
    79,640.51x = 5,206,247,001.55
  5. Step 5: Solve for x
    x = 5,206,247,001.55/79,640.51
  6. Step 6: Final answer
    x = 65,371.85

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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.