Home / 84,743.10-127,110.60-28,577.70

Finding the Fourth Proportional to 84,743.10, 127,110.60 and 28,577.70

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Solution

The fourth proportional to 84,743.10, 127,110.60 and 28,577.70 is: 42,865.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,743.10 : 127,110.60 = 28,577.70 : x
  2. Step 2: Convert to fraction form
    84,743.10/127,110.60 = 28,577.70/x
  3. Step 3: Cross multiply
    84,743.10x = 127,110.60 × 28,577.70
  4. Step 4: Simplify right side
    84,743.10x = 3,632,528,593.62
  5. Step 5: Solve for x
    x = 3,632,528,593.62/84,743.10
  6. Step 6: Final answer
    x = 42,865.18

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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.