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Finding the Fourth Proportional to 54,513.88, 81,712.50 and 28,192.12

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Solution

The fourth proportional to 54,513.88, 81,712.50 and 28,192.12 is: 42,258.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,513.88 : 81,712.50 = 28,192.12 : x
  2. Step 2: Convert to fraction form
    54,513.88/81,712.50 = 28,192.12/x
  3. Step 3: Cross multiply
    54,513.88x = 81,712.50 × 28,192.12
  4. Step 4: Simplify right side
    54,513.88x = 2,303,648,605.50
  5. Step 5: Solve for x
    x = 2,303,648,605.50/54,513.88
  6. Step 6: Final answer
    x = 42,258.02

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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.