Home / 80,888.02-121,349.31-28,299.22

Finding the Fourth Proportional to 80,888.02, 121,349.31 and 28,299.22

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Solution

The fourth proportional to 80,888.02, 121,349.31 and 28,299.22 is: 42,454.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,888.02 : 121,349.31 = 28,299.22 : x
  2. Step 2: Convert to fraction form
    80,888.02/121,349.31 = 28,299.22/x
  3. Step 3: Cross multiply
    80,888.02x = 121,349.31 × 28,299.22
  4. Step 4: Simplify right side
    80,888.02x = 3,434,090,820.54
  5. Step 5: Solve for x
    x = 3,434,090,820.54/80,888.02
  6. Step 6: Final answer
    x = 42,454.88

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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.