Home / 84,708.39-127,061.87-21,528.70

Finding the Fourth Proportional to 84,708.39, 127,061.87 and 21,528.70

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Solution

The fourth proportional to 84,708.39, 127,061.87 and 21,528.70 is: 32,292.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,708.39 : 127,061.87 = 21,528.70 : x
  2. Step 2: Convert to fraction form
    84,708.39/127,061.87 = 21,528.70/x
  3. Step 3: Cross multiply
    84,708.39x = 127,061.87 × 21,528.70
  4. Step 4: Simplify right side
    84,708.39x = 2,735,476,455.37
  5. Step 5: Solve for x
    x = 2,735,476,455.37/84,708.39
  6. Step 6: Final answer
    x = 32,292.86

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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.