Home / 59,779.12-82,517.55-39,642.75

Finding the Fourth Proportional to 59,779.12, 82,517.55 and 39,642.75

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Solution

The fourth proportional to 59,779.12, 82,517.55 and 39,642.75 is: 54,721.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,779.12 : 82,517.55 = 39,642.75 : x
  2. Step 2: Convert to fraction form
    59,779.12/82,517.55 = 39,642.75/x
  3. Step 3: Cross multiply
    59,779.12x = 82,517.55 × 39,642.75
  4. Step 4: Simplify right side
    59,779.12x = 3,271,222,605.26
  5. Step 5: Solve for x
    x = 3,271,222,605.26/59,779.12
  6. Step 6: Final answer
    x = 54,721.83

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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.