Home / 76,172.15-114,268.86-31,788.73

Finding the Fourth Proportional to 76,172.15, 114,268.86 and 31,788.73

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Solution

The fourth proportional to 76,172.15, 114,268.86 and 31,788.73 is: 47,687.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,172.15 : 114,268.86 = 31,788.73 : x
  2. Step 2: Convert to fraction form
    76,172.15/114,268.86 = 31,788.73/x
  3. Step 3: Cross multiply
    76,172.15x = 114,268.86 × 31,788.73
  4. Step 4: Simplify right side
    76,172.15x = 3,632,461,779.00
  5. Step 5: Solve for x
    x = 3,632,461,779.00/76,172.15
  6. Step 6: Final answer
    x = 47,687.53

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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.