Home / 54,216.63-81,330.45-18,673.31

Finding the Fourth Proportional to 54,216.63, 81,330.45 and 18,673.31

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Solution

The fourth proportional to 54,216.63, 81,330.45 and 18,673.31 is: 28,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,216.63 : 81,330.45 = 18,673.31 : x
  2. Step 2: Convert to fraction form
    54,216.63/81,330.45 = 18,673.31/x
  3. Step 3: Cross multiply
    54,216.63x = 81,330.45 × 18,673.31
  4. Step 4: Simplify right side
    54,216.63x = 1,518,708,298.64
  5. Step 5: Solve for x
    x = 1,518,708,298.64/54,216.63
  6. Step 6: Final answer
    x = 28,011.85

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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.