Home / 66,208.68-91,397.43-39,359.88

Finding the Fourth Proportional to 66,208.68, 91,397.43 and 39,359.88

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Solution

The fourth proportional to 66,208.68, 91,397.43 and 39,359.88 is: 54,334.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,208.68 : 91,397.43 = 39,359.88 : x
  2. Step 2: Convert to fraction form
    66,208.68/91,397.43 = 39,359.88/x
  3. Step 3: Cross multiply
    66,208.68x = 91,397.43 × 39,359.88
  4. Step 4: Simplify right side
    66,208.68x = 3,597,391,877.11
  5. Step 5: Solve for x
    x = 3,597,391,877.11/66,208.68
  6. Step 6: Final answer
    x = 54,334.14

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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.