Home / 57,287.20-85,833.60-47,372.80

Finding the Fourth Proportional to 57,287.20, 85,833.60 and 47,372.80

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Solution

The fourth proportional to 57,287.20, 85,833.60 and 47,372.80 is: 70,978.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,287.20 : 85,833.60 = 47,372.80 : x
  2. Step 2: Convert to fraction form
    57,287.20/85,833.60 = 47,372.80/x
  3. Step 3: Cross multiply
    57,287.20x = 85,833.60 × 47,372.80
  4. Step 4: Simplify right side
    57,287.20x = 4,066,177,966.08
  5. Step 5: Solve for x
    x = 4,066,177,966.08/57,287.20
  6. Step 6: Final answer
    x = 70,978.82

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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.