Home / 57,127.28-85,579.32-39,354.80

Finding the Fourth Proportional to 57,127.28, 85,579.32 and 39,354.80

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Solution

The fourth proportional to 57,127.28, 85,579.32 and 39,354.80 is: 58,955.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,127.28 : 85,579.32 = 39,354.80 : x
  2. Step 2: Convert to fraction form
    57,127.28/85,579.32 = 39,354.80/x
  3. Step 3: Cross multiply
    57,127.28x = 85,579.32 × 39,354.80
  4. Step 4: Simplify right side
    57,127.28x = 3,367,957,022.74
  5. Step 5: Solve for x
    x = 3,367,957,022.74/57,127.28
  6. Step 6: Final answer
    x = 58,955.32

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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.