Home / 83,787.12-125,677.44-28,383.12

Finding the Fourth Proportional to 83,787.12, 125,677.44 and 28,383.12

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Solution

The fourth proportional to 83,787.12, 125,677.44 and 28,383.12 is: 42,573.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,787.12 : 125,677.44 = 28,383.12 : x
  2. Step 2: Convert to fraction form
    83,787.12/125,677.44 = 28,383.12/x
  3. Step 3: Cross multiply
    83,787.12x = 125,677.44 × 28,383.12
  4. Step 4: Simplify right side
    83,787.12x = 3,567,117,860.81
  5. Step 5: Solve for x
    x = 3,567,117,860.81/83,787.12
  6. Step 6: Final answer
    x = 42,573.58

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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.