Home / 57,285.87-79,048.01-31,785.60

Finding the Fourth Proportional to 57,285.87, 79,048.01 and 31,785.60

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Solution

The fourth proportional to 57,285.87, 79,048.01 and 31,785.60 is: 43,860.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,285.87 : 79,048.01 = 31,785.60 : x
  2. Step 2: Convert to fraction form
    57,285.87/79,048.01 = 31,785.60/x
  3. Step 3: Cross multiply
    57,285.87x = 79,048.01 × 31,785.60
  4. Step 4: Simplify right side
    57,285.87x = 2,512,588,426.66
  5. Step 5: Solve for x
    x = 2,512,588,426.66/57,285.87
  6. Step 6: Final answer
    x = 43,860.53

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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.