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Finding the Fourth Proportional to 84,896.71, 127,015.80 and 61,258.68

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Solution

The fourth proportional to 84,896.71, 127,015.80 and 61,258.68 is: 91,650.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,896.71 : 127,015.80 = 61,258.68 : x
  2. Step 2: Convert to fraction form
    84,896.71/127,015.80 = 61,258.68/x
  3. Step 3: Cross multiply
    84,896.71x = 127,015.80 × 61,258.68
  4. Step 4: Simplify right side
    84,896.71x = 7,780,820,017.42
  5. Step 5: Solve for x
    x = 7,780,820,017.42/84,896.71
  6. Step 6: Final answer
    x = 91,650.43

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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.