Home / 51,720.45-77,586.76-18,445.25

Finding the Fourth Proportional to 51,720.45, 77,586.76 and 18,445.25

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Solution

The fourth proportional to 51,720.45, 77,586.76 and 18,445.25 is: 27,670.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,720.45 : 77,586.76 = 18,445.25 : x
  2. Step 2: Convert to fraction form
    51,720.45/77,586.76 = 18,445.25/x
  3. Step 3: Cross multiply
    51,720.45x = 77,586.76 × 18,445.25
  4. Step 4: Simplify right side
    51,720.45x = 1,431,107,184.89
  5. Step 5: Solve for x
    x = 1,431,107,184.89/51,720.45
  6. Step 6: Final answer
    x = 27,670.05

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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.