Home / 80,796.67-121,250.37-28,206.16

Finding the Fourth Proportional to 80,796.67, 121,250.37 and 28,206.16

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Solution

The fourth proportional to 80,796.67, 121,250.37 and 28,206.16 is: 42,328.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,796.67 : 121,250.37 = 28,206.16 : x
  2. Step 2: Convert to fraction form
    80,796.67/121,250.37 = 28,206.16/x
  3. Step 3: Cross multiply
    80,796.67x = 121,250.37 × 28,206.16
  4. Step 4: Simplify right side
    80,796.67x = 3,420,006,980.27
  5. Step 5: Solve for x
    x = 3,420,006,980.27/80,796.67
  6. Step 6: Final answer
    x = 42,328.56

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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.