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Finding the Fourth Proportional to 71,813, 107,719.50 and 25,053.32

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Solution

The fourth proportional to 71,813, 107,719.50 and 25,053.32 is: 37,579.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,813 : 107,719.50 = 25,053.32 : x
  2. Step 2: Convert to fraction form
    71,813/107,719.50 = 25,053.32/x
  3. Step 3: Cross multiply
    71,813x = 107,719.50 × 25,053.32
  4. Step 4: Simplify right side
    71,813x = 2,698,731,103.74
  5. Step 5: Solve for x
    x = 2,698,731,103.74/71,813
  6. Step 6: Final answer
    x = 37,579.98

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Similar ratio
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1.5x scale

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.