Home / 85,542.12-128,313.54-35,591.04

Finding the Fourth Proportional to 85,542.12, 128,313.54 and 35,591.04

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Solution

The fourth proportional to 85,542.12, 128,313.54 and 35,591.04 is: 53,386.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,542.12 : 128,313.54 = 35,591.04 : x
  2. Step 2: Convert to fraction form
    85,542.12/128,313.54 = 35,591.04/x
  3. Step 3: Cross multiply
    85,542.12x = 128,313.54 × 35,591.04
  4. Step 4: Simplify right side
    85,542.12x = 4,566,812,334.68
  5. Step 5: Solve for x
    x = 4,566,812,334.68/85,542.12
  6. Step 6: Final answer
    x = 53,386.71

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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.