Home / 84,867.60-127,285.20-25,705.20

Finding the Fourth Proportional to 84,867.60, 127,285.20 and 25,705.20

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Solution

The fourth proportional to 84,867.60, 127,285.20 and 25,705.20 is: 38,552.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,867.60 : 127,285.20 = 25,705.20 : x
  2. Step 2: Convert to fraction form
    84,867.60/127,285.20 = 25,705.20/x
  3. Step 3: Cross multiply
    84,867.60x = 127,285.20 × 25,705.20
  4. Step 4: Simplify right side
    84,867.60x = 3,271,891,523.04
  5. Step 5: Solve for x
    x = 3,271,891,523.04/84,867.60
  6. Step 6: Final answer
    x = 38,552.89

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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.