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Finding the Fourth Proportional to 84,632.64, 126,792 and 42,463.20

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Solution

The fourth proportional to 84,632.64, 126,792 and 42,463.20 is: 63,616.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,632.64 : 126,792 = 42,463.20 : x
  2. Step 2: Convert to fraction form
    84,632.64/126,792 = 42,463.20/x
  3. Step 3: Cross multiply
    84,632.64x = 126,792 × 42,463.20
  4. Step 4: Simplify right side
    84,632.64x = 5,383,994,054.40
  5. Step 5: Solve for x
    x = 5,383,994,054.40/84,632.64
  6. Step 6: Final answer
    x = 63,616.05

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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.