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Finding the Fourth Proportional to 84,883.60, 127,232.40 and 42,696.40

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Solution

The fourth proportional to 84,883.60, 127,232.40 and 42,696.40 is: 63,997.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,883.60 : 127,232.40 = 42,696.40 : x
  2. Step 2: Convert to fraction form
    84,883.60/127,232.40 = 42,696.40/x
  3. Step 3: Cross multiply
    84,883.60x = 127,232.40 × 42,696.40
  4. Step 4: Simplify right side
    84,883.60x = 5,432,365,443.36
  5. Step 5: Solve for x
    x = 5,432,365,443.36/84,883.60
  6. Step 6: Final answer
    x = 63,997.82

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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.