Home / 84,983.73-127,981.50-74,022.81

Finding the Fourth Proportional to 84,983.73, 127,981.50 and 74,022.81

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Solution

The fourth proportional to 84,983.73, 127,981.50 and 74,022.81 is: 111,474.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,983.73 : 127,981.50 = 74,022.81 : x
  2. Step 2: Convert to fraction form
    84,983.73/127,981.50 = 74,022.81/x
  3. Step 3: Cross multiply
    84,983.73x = 127,981.50 × 74,022.81
  4. Step 4: Simplify right side
    84,983.73x = 9,473,550,258.02
  5. Step 5: Solve for x
    x = 9,473,550,258.02/84,983.73
  6. Step 6: Final answer
    x = 111,474.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.