Home / 51,754.47-77,638.08-18,478.05

Finding the Fourth Proportional to 51,754.47, 77,638.08 and 18,478.05

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Solution

The fourth proportional to 51,754.47, 77,638.08 and 18,478.05 is: 27,719.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,754.47 : 77,638.08 = 18,478.05 : x
  2. Step 2: Convert to fraction form
    51,754.47/77,638.08 = 18,478.05/x
  3. Step 3: Cross multiply
    51,754.47x = 77,638.08 × 18,478.05
  4. Step 4: Simplify right side
    51,754.47x = 1,434,600,324.14
  5. Step 5: Solve for x
    x = 1,434,600,324.14/51,754.47
  6. Step 6: Final answer
    x = 27,719.35

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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.