Home / 57,045.60-78,716.88-33,171.12

Finding the Fourth Proportional to 57,045.60, 78,716.88 and 33,171.12

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Solution

The fourth proportional to 57,045.60, 78,716.88 and 33,171.12 is: 45,772.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,045.60 : 78,716.88 = 33,171.12 : x
  2. Step 2: Convert to fraction form
    57,045.60/78,716.88 = 33,171.12/x
  3. Step 3: Cross multiply
    57,045.60x = 78,716.88 × 33,171.12
  4. Step 4: Simplify right side
    57,045.60x = 2,611,127,072.51
  5. Step 5: Solve for x
    x = 2,611,127,072.51/57,045.60
  6. Step 6: Final answer
    x = 45,772.63

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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.