Home / 54,309.39-81,444.11-18,761.67

Finding the Fourth Proportional to 54,309.39, 81,444.11 and 18,761.67

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Solution

The fourth proportional to 54,309.39, 81,444.11 and 18,761.67 is: 28,135.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,309.39 : 81,444.11 = 18,761.67 : x
  2. Step 2: Convert to fraction form
    54,309.39/81,444.11 = 18,761.67/x
  3. Step 3: Cross multiply
    54,309.39x = 81,444.11 × 18,761.67
  4. Step 4: Simplify right side
    54,309.39x = 1,528,027,421.46
  5. Step 5: Solve for x
    x = 1,528,027,421.46/54,309.39
  6. Step 6: Final answer
    x = 28,135.60

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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.