Home / 91,310.26-126,008.16-55,493.58

Finding the Fourth Proportional to 91,310.26, 126,008.16 and 55,493.58

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Solution

The fourth proportional to 91,310.26, 126,008.16 and 55,493.58 is: 76,581.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,310.26 : 126,008.16 = 55,493.58 : x
  2. Step 2: Convert to fraction form
    91,310.26/126,008.16 = 55,493.58/x
  3. Step 3: Cross multiply
    91,310.26x = 126,008.16 × 55,493.58
  4. Step 4: Simplify right side
    91,310.26x = 6,992,643,907.61
  5. Step 5: Solve for x
    x = 6,992,643,907.61/91,310.26
  6. Step 6: Final answer
    x = 76,581.14

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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.