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Finding the Fourth Proportional to 84,955.87, 127,258.83 and 49,810.78

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Solution

The fourth proportional to 84,955.87, 127,258.83 and 49,810.78 is: 74,613.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,955.87 : 127,258.83 = 49,810.78 : x
  2. Step 2: Convert to fraction form
    84,955.87/127,258.83 = 49,810.78/x
  3. Step 3: Cross multiply
    84,955.87x = 127,258.83 × 49,810.78
  4. Step 4: Simplify right side
    84,955.87x = 6,338,861,743.26
  5. Step 5: Solve for x
    x = 6,338,861,743.26/84,955.87
  6. Step 6: Final answer
    x = 74,613.58

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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.