Home / 81,779.32-122,669.40-24,853.76

Finding the Fourth Proportional to 81,779.32, 122,669.40 and 24,853.76

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Solution

The fourth proportional to 81,779.32, 122,669.40 and 24,853.76 is: 37,280.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,779.32 : 122,669.40 = 24,853.76 : x
  2. Step 2: Convert to fraction form
    81,779.32/122,669.40 = 24,853.76/x
  3. Step 3: Cross multiply
    81,779.32x = 122,669.40 × 24,853.76
  4. Step 4: Simplify right side
    81,779.32x = 3,048,795,826.94
  5. Step 5: Solve for x
    x = 3,048,795,826.94/81,779.32
  6. Step 6: Final answer
    x = 37,280.77

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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.