Home / 66,218.88-91,321.51-49,265.58

Finding the Fourth Proportional to 66,218.88, 91,321.51 and 49,265.58

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Solution

The fourth proportional to 66,218.88, 91,321.51 and 49,265.58 is: 67,941.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,218.88 : 91,321.51 = 49,265.58 : x
  2. Step 2: Convert to fraction form
    66,218.88/91,321.51 = 49,265.58/x
  3. Step 3: Cross multiply
    66,218.88x = 91,321.51 × 49,265.58
  4. Step 4: Simplify right side
    66,218.88x = 4,499,007,156.63
  5. Step 5: Solve for x
    x = 4,499,007,156.63/66,218.88
  6. Step 6: Final answer
    x = 67,941.46

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1.5x scale

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.