Home / 54,276.10-81,401.85-19,215.76

Finding the Fourth Proportional to 54,276.10, 81,401.85 and 19,215.76

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Solution

The fourth proportional to 54,276.10, 81,401.85 and 19,215.76 is: 28,819.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,276.10 : 81,401.85 = 19,215.76 : x
  2. Step 2: Convert to fraction form
    54,276.10/81,401.85 = 19,215.76/x
  3. Step 3: Cross multiply
    54,276.10x = 81,401.85 × 19,215.76
  4. Step 4: Simplify right side
    54,276.10x = 1,564,198,413.16
  5. Step 5: Solve for x
    x = 1,564,198,413.16/54,276.10
  6. Step 6: Final answer
    x = 28,819.29

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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.