Home / 52,985.21-73,121.40-29,112.75

Finding the Fourth Proportional to 52,985.21, 73,121.40 and 29,112.75

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Solution

The fourth proportional to 52,985.21, 73,121.40 and 29,112.75 is: 40,176.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,985.21 : 73,121.40 = 29,112.75 : x
  2. Step 2: Convert to fraction form
    52,985.21/73,121.40 = 29,112.75/x
  3. Step 3: Cross multiply
    52,985.21x = 73,121.40 × 29,112.75
  4. Step 4: Simplify right side
    52,985.21x = 2,128,765,037.85
  5. Step 5: Solve for x
    x = 2,128,765,037.85/52,985.21
  6. Step 6: Final answer
    x = 40,176.59

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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.