Home / 45,130.98-67,696.77-11,850.78

Finding the Fourth Proportional to 45,130.98, 67,696.77 and 11,850.78

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Solution

The fourth proportional to 45,130.98, 67,696.77 and 11,850.78 is: 17,776.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,130.98 : 67,696.77 = 11,850.78 : x
  2. Step 2: Convert to fraction form
    45,130.98/67,696.77 = 11,850.78/x
  3. Step 3: Cross multiply
    45,130.98x = 67,696.77 × 11,850.78
  4. Step 4: Simplify right side
    45,130.98x = 802,259,527.98
  5. Step 5: Solve for x
    x = 802,259,527.98/45,130.98
  6. Step 6: Final answer
    x = 17,776.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.