Home / 81,586.25-112,588.91-45,779.59

Finding the Fourth Proportional to 81,586.25, 112,588.91 and 45,779.59

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Solution

The fourth proportional to 81,586.25, 112,588.91 and 45,779.59 is: 63,175.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,586.25 : 112,588.91 = 45,779.59 : x
  2. Step 2: Convert to fraction form
    81,586.25/112,588.91 = 45,779.59/x
  3. Step 3: Cross multiply
    81,586.25x = 112,588.91 × 45,779.59
  4. Step 4: Simplify right side
    81,586.25x = 5,154,273,627.98
  5. Step 5: Solve for x
    x = 5,154,273,627.98/81,586.25
  6. Step 6: Final answer
    x = 63,175.77

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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.