Home / 66,938.79-100,456.74-53,948.01

Finding the Fourth Proportional to 66,938.79, 100,456.74 and 53,948.01

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Solution

The fourth proportional to 66,938.79, 100,456.74 and 53,948.01 is: 80,961.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,938.79 : 100,456.74 = 53,948.01 : x
  2. Step 2: Convert to fraction form
    66,938.79/100,456.74 = 53,948.01/x
  3. Step 3: Cross multiply
    66,938.79x = 100,456.74 × 53,948.01
  4. Step 4: Simplify right side
    66,938.79x = 5,419,441,214.09
  5. Step 5: Solve for x
    x = 5,419,441,214.09/66,938.79
  6. Step 6: Final answer
    x = 80,961.15

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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.