Home / 66,461.90-91,748.14-40,972.82

Finding the Fourth Proportional to 66,461.90, 91,748.14 and 40,972.82

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Solution

The fourth proportional to 66,461.90, 91,748.14 and 40,972.82 is: 56,561.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,461.90 : 91,748.14 = 40,972.82 : x
  2. Step 2: Convert to fraction form
    66,461.90/91,748.14 = 40,972.82/x
  3. Step 3: Cross multiply
    66,461.90x = 91,748.14 × 40,972.82
  4. Step 4: Simplify right side
    66,461.90x = 3,759,179,820.69
  5. Step 5: Solve for x
    x = 3,759,179,820.69/66,461.90
  6. Step 6: Final answer
    x = 56,561.43

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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.