Home / 57,984.12-80,042.58-39,146.76

Finding the Fourth Proportional to 57,984.12, 80,042.58 and 39,146.76

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Solution

The fourth proportional to 57,984.12, 80,042.58 and 39,146.76 is: 54,039.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,984.12 : 80,042.58 = 39,146.76 : x
  2. Step 2: Convert to fraction form
    57,984.12/80,042.58 = 39,146.76/x
  3. Step 3: Cross multiply
    57,984.12x = 80,042.58 × 39,146.76
  4. Step 4: Simplify right side
    57,984.12x = 3,133,407,669.04
  5. Step 5: Solve for x
    x = 3,133,407,669.04/57,984.12
  6. Step 6: Final answer
    x = 54,039.07

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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.