Home / 90,779.15-125,272.22-50,491.77

Finding the Fourth Proportional to 90,779.15, 125,272.22 and 50,491.77

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Solution

The fourth proportional to 90,779.15, 125,272.22 and 50,491.77 is: 69,676.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,779.15 : 125,272.22 = 50,491.77 : x
  2. Step 2: Convert to fraction form
    90,779.15/125,272.22 = 50,491.77/x
  3. Step 3: Cross multiply
    90,779.15x = 125,272.22 × 50,491.77
  4. Step 4: Simplify right side
    90,779.15x = 6,325,215,867.17
  5. Step 5: Solve for x
    x = 6,325,215,867.17/90,779.15
  6. Step 6: Final answer
    x = 69,676.97

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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.