Home / 84,787.97-127,184.63-42,645.03

Finding the Fourth Proportional to 84,787.97, 127,184.63 and 42,645.03

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Solution

The fourth proportional to 84,787.97, 127,184.63 and 42,645.03 is: 63,968.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,787.97 : 127,184.63 = 42,645.03 : x
  2. Step 2: Convert to fraction form
    84,787.97/127,184.63 = 42,645.03/x
  3. Step 3: Cross multiply
    84,787.97x = 127,184.63 × 42,645.03
  4. Step 4: Simplify right side
    84,787.97x = 5,423,792,627.01
  5. Step 5: Solve for x
    x = 5,423,792,627.01/84,787.97
  6. Step 6: Final answer
    x = 63,968.90

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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.