Home / 78,364.28-108,170.30-46,532.95

Finding the Fourth Proportional to 78,364.28, 108,170.30 and 46,532.95

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Solution

The fourth proportional to 78,364.28, 108,170.30 and 46,532.95 is: 64,231.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,364.28 : 108,170.30 = 46,532.95 : x
  2. Step 2: Convert to fraction form
    78,364.28/108,170.30 = 46,532.95/x
  3. Step 3: Cross multiply
    78,364.28x = 108,170.30 × 46,532.95
  4. Step 4: Simplify right side
    78,364.28x = 5,033,483,007.29
  5. Step 5: Solve for x
    x = 5,033,483,007.29/78,364.28
  6. Step 6: Final answer
    x = 64,231.85

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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.