Home / 76,813.74-115,628.22-54,779.58

Finding the Fourth Proportional to 76,813.74, 115,628.22 and 54,779.58

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Solution

The fourth proportional to 76,813.74, 115,628.22 and 54,779.58 is: 82,460.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,813.74 : 115,628.22 = 54,779.58 : x
  2. Step 2: Convert to fraction form
    76,813.74/115,628.22 = 54,779.58/x
  3. Step 3: Cross multiply
    76,813.74x = 115,628.22 × 54,779.58
  4. Step 4: Simplify right side
    76,813.74x = 6,334,065,327.75
  5. Step 5: Solve for x
    x = 6,334,065,327.75/76,813.74
  6. Step 6: Final answer
    x = 82,460.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.