Home / 52,171.20-78,258.14-14,220.78

Finding the Fourth Proportional to 52,171.20, 78,258.14 and 14,220.78

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Solution

The fourth proportional to 52,171.20, 78,258.14 and 14,220.78 is: 21,331.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,171.20 : 78,258.14 = 14,220.78 : x
  2. Step 2: Convert to fraction form
    52,171.20/78,258.14 = 14,220.78/x
  3. Step 3: Cross multiply
    52,171.20x = 78,258.14 × 14,220.78
  4. Step 4: Simplify right side
    52,171.20x = 1,112,891,792.15
  5. Step 5: Solve for x
    x = 1,112,891,792.15/52,171.20
  6. Step 6: Final answer
    x = 21,331.54

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1.5x scale

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.