Home / 78,470.10-108,289.17-46,206.11

Finding the Fourth Proportional to 78,470.10, 108,289.17 and 46,206.11

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Solution

The fourth proportional to 78,470.10, 108,289.17 and 46,206.11 is: 63,764.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,470.10 : 108,289.17 = 46,206.11 : x
  2. Step 2: Convert to fraction form
    78,470.10/108,289.17 = 46,206.11/x
  3. Step 3: Cross multiply
    78,470.10x = 108,289.17 × 46,206.11
  4. Step 4: Simplify right side
    78,470.10x = 5,003,621,571.55
  5. Step 5: Solve for x
    x = 5,003,621,571.55/78,470.10
  6. Step 6: Final answer
    x = 63,764.69

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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.