Home / 51,509.76-77,264.46-18,231.72

Finding the Fourth Proportional to 51,509.76, 77,264.46 and 18,231.72

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Solution

The fourth proportional to 51,509.76, 77,264.46 and 18,231.72 is: 27,347.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,509.76 : 77,264.46 = 18,231.72 : x
  2. Step 2: Convert to fraction form
    51,509.76/77,264.46 = 18,231.72/x
  3. Step 3: Cross multiply
    51,509.76x = 77,264.46 × 18,231.72
  4. Step 4: Simplify right side
    51,509.76x = 1,408,664,000.67
  5. Step 5: Solve for x
    x = 1,408,664,000.67/51,509.76
  6. Step 6: Final answer
    x = 27,347.52

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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.