Home / 78,392.90-108,199.32-48,204.20

Finding the Fourth Proportional to 78,392.90, 108,199.32 and 48,204.20

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Solution

The fourth proportional to 78,392.90, 108,199.32 and 48,204.20 is: 66,532.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,392.90 : 108,199.32 = 48,204.20 : x
  2. Step 2: Convert to fraction form
    78,392.90/108,199.32 = 48,204.20/x
  3. Step 3: Cross multiply
    78,392.90x = 108,199.32 × 48,204.20
  4. Step 4: Simplify right side
    78,392.90x = 5,215,661,661.14
  5. Step 5: Solve for x
    x = 5,215,661,661.14/78,392.90
  6. Step 6: Final answer
    x = 66,532.32

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1.5x scale

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.