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Finding the Fourth Proportional to 81,162.60, 112,004.16 and 45,352.65

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Solution

The fourth proportional to 81,162.60, 112,004.16 and 45,352.65 is: 62,586.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,162.60 : 112,004.16 = 45,352.65 : x
  2. Step 2: Convert to fraction form
    81,162.60/112,004.16 = 45,352.65/x
  3. Step 3: Cross multiply
    81,162.60x = 112,004.16 × 45,352.65
  4. Step 4: Simplify right side
    81,162.60x = 5,079,685,240.26
  5. Step 5: Solve for x
    x = 5,079,685,240.26/81,162.60
  6. Step 6: Final answer
    x = 62,586.53

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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.