Home / 55,788.54-76,986.36-39,899.58

Finding the Fourth Proportional to 55,788.54, 76,986.36 and 39,899.58

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Solution

The fourth proportional to 55,788.54, 76,986.36 and 39,899.58 is: 55,060.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,788.54 : 76,986.36 = 39,899.58 : x
  2. Step 2: Convert to fraction form
    55,788.54/76,986.36 = 39,899.58/x
  3. Step 3: Cross multiply
    55,788.54x = 76,986.36 × 39,899.58
  4. Step 4: Simplify right side
    55,788.54x = 3,071,723,429.73
  5. Step 5: Solve for x
    x = 3,071,723,429.73/55,788.54
  6. Step 6: Final answer
    x = 55,060.12

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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.