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Finding the Fourth Proportional to 84,897.48, 127,258.60 and 28,719.12

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Solution

The fourth proportional to 84,897.48, 127,258.60 and 28,719.12 is: 43,049.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,897.48 : 127,258.60 = 28,719.12 : x
  2. Step 2: Convert to fraction form
    84,897.48/127,258.60 = 28,719.12/x
  3. Step 3: Cross multiply
    84,897.48x = 127,258.60 × 28,719.12
  4. Step 4: Simplify right side
    84,897.48x = 3,654,755,004.43
  5. Step 5: Solve for x
    x = 3,654,755,004.43/84,897.48
  6. Step 6: Final answer
    x = 43,049.04

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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.