Home / 66,131.84-99,652.40-54,701.12

Finding the Fourth Proportional to 66,131.84, 99,652.40 and 54,701.12

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Solution

The fourth proportional to 66,131.84, 99,652.40 and 54,701.12 is: 82,427.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,131.84 : 99,652.40 = 54,701.12 : x
  2. Step 2: Convert to fraction form
    66,131.84/99,652.40 = 54,701.12/x
  3. Step 3: Cross multiply
    66,131.84x = 99,652.40 × 54,701.12
  4. Step 4: Simplify right side
    66,131.84x = 5,451,097,890.69
  5. Step 5: Solve for x
    x = 5,451,097,890.69/66,131.84
  6. Step 6: Final answer
    x = 82,427.74

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.