Home / 81,024.08-121,535.94-28,448.60

Finding the Fourth Proportional to 81,024.08, 121,535.94 and 28,448.60

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Solution

The fourth proportional to 81,024.08, 121,535.94 and 28,448.60 is: 42,672.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,024.08 : 121,535.94 = 28,448.60 : x
  2. Step 2: Convert to fraction form
    81,024.08/121,535.94 = 28,448.60/x
  3. Step 3: Cross multiply
    81,024.08x = 121,535.94 × 28,448.60
  4. Step 4: Simplify right side
    81,024.08x = 3,457,527,342.68
  5. Step 5: Solve for x
    x = 3,457,527,342.68/81,024.08
  6. Step 6: Final answer
    x = 42,672.84

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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.