Home / 68,272.47-94,213.53-39,977.55

Finding the Fourth Proportional to 68,272.47, 94,213.53 and 39,977.55

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Solution

The fourth proportional to 68,272.47, 94,213.53 and 39,977.55 is: 55,167.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,272.47 : 94,213.53 = 39,977.55 : x
  2. Step 2: Convert to fraction form
    68,272.47/94,213.53 = 39,977.55/x
  3. Step 3: Cross multiply
    68,272.47x = 94,213.53 × 39,977.55
  4. Step 4: Simplify right side
    68,272.47x = 3,766,426,106.25
  5. Step 5: Solve for x
    x = 3,766,426,106.25/68,272.47
  6. Step 6: Final answer
    x = 55,167.57

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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.