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Finding the Fourth Proportional to 54,300.79, 81,462.06 and 18,763.41

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Solution

The fourth proportional to 54,300.79, 81,462.06 and 18,763.41 is: 28,148.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,300.79 : 81,462.06 = 18,763.41 : x
  2. Step 2: Convert to fraction form
    54,300.79/81,462.06 = 18,763.41/x
  3. Step 3: Cross multiply
    54,300.79x = 81,462.06 × 18,763.41
  4. Step 4: Simplify right side
    54,300.79x = 1,528,506,031.22
  5. Step 5: Solve for x
    x = 1,528,506,031.22/54,300.79
  6. Step 6: Final answer
    x = 28,148.87

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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.