Home / 51,719.59-71,381.35-48,342.74

Finding the Fourth Proportional to 51,719.59, 71,381.35 and 48,342.74

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Solution

The fourth proportional to 51,719.59, 71,381.35 and 48,342.74 is: 66,720.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,719.59 : 71,381.35 = 48,342.74 : x
  2. Step 2: Convert to fraction form
    51,719.59/71,381.35 = 48,342.74/x
  3. Step 3: Cross multiply
    51,719.59x = 71,381.35 × 48,342.74
  4. Step 4: Simplify right side
    51,719.59x = 3,450,769,747.42
  5. Step 5: Solve for x
    x = 3,450,769,747.42/51,719.59
  6. Step 6: Final answer
    x = 66,720.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.