Home / 57,087.54-78,779.55-31,245.96

Finding the Fourth Proportional to 57,087.54, 78,779.55 and 31,245.96

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Solution

The fourth proportional to 57,087.54, 78,779.55 and 31,245.96 is: 43,118.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,087.54 : 78,779.55 = 31,245.96 : x
  2. Step 2: Convert to fraction form
    57,087.54/78,779.55 = 31,245.96/x
  3. Step 3: Cross multiply
    57,087.54x = 78,779.55 × 31,245.96
  4. Step 4: Simplify right side
    57,087.54x = 2,461,542,668.12
  5. Step 5: Solve for x
    x = 2,461,542,668.12/57,087.54
  6. Step 6: Final answer
    x = 43,118.74

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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.