Home / 57,216.85-79,023.90-39,036.36

Finding the Fourth Proportional to 57,216.85, 79,023.90 and 39,036.36

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Solution

The fourth proportional to 57,216.85, 79,023.90 and 39,036.36 is: 53,914.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,216.85 : 79,023.90 = 39,036.36 : x
  2. Step 2: Convert to fraction form
    57,216.85/79,023.90 = 39,036.36/x
  3. Step 3: Cross multiply
    57,216.85x = 79,023.90 × 39,036.36
  4. Step 4: Simplify right side
    57,216.85x = 3,084,805,851.73
  5. Step 5: Solve for x
    x = 3,084,805,851.73/57,216.85
  6. Step 6: Final answer
    x = 53,914.29

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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.