Home / 54,600.32-81,900.20-21,323.76

Finding the Fourth Proportional to 54,600.32, 81,900.20 and 21,323.76

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Solution

The fourth proportional to 54,600.32, 81,900.20 and 21,323.76 is: 31,985.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,600.32 : 81,900.20 = 21,323.76 : x
  2. Step 2: Convert to fraction form
    54,600.32/81,900.20 = 21,323.76/x
  3. Step 3: Cross multiply
    54,600.32x = 81,900.20 × 21,323.76
  4. Step 4: Simplify right side
    54,600.32x = 1,746,420,208.75
  5. Step 5: Solve for x
    x = 1,746,420,208.75/54,600.32
  6. Step 6: Final answer
    x = 31,985.53

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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.