Home / 81,543.48-112,530.92-45,245.58

Finding the Fourth Proportional to 81,543.48, 112,530.92 and 45,245.58

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Solution

The fourth proportional to 81,543.48, 112,530.92 and 45,245.58 is: 62,439.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,543.48 : 112,530.92 = 45,245.58 : x
  2. Step 2: Convert to fraction form
    81,543.48/112,530.92 = 45,245.58/x
  3. Step 3: Cross multiply
    81,543.48x = 112,530.92 × 45,245.58
  4. Step 4: Simplify right side
    81,543.48x = 5,091,526,743.33
  5. Step 5: Solve for x
    x = 5,091,526,743.33/81,543.48
  6. Step 6: Final answer
    x = 62,439.41

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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.