Home / 81,161.34-112,003.26-45,352.86

Finding the Fourth Proportional to 81,161.34, 112,003.26 and 45,352.86

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Solution

The fourth proportional to 81,161.34, 112,003.26 and 45,352.86 is: 62,587.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,161.34 : 112,003.26 = 45,352.86 : x
  2. Step 2: Convert to fraction form
    81,161.34/112,003.26 = 45,352.86/x
  3. Step 3: Cross multiply
    81,161.34x = 112,003.26 × 45,352.86
  4. Step 4: Simplify right side
    81,161.34x = 5,079,668,170.32
  5. Step 5: Solve for x
    x = 5,079,668,170.32/81,161.34
  6. Step 6: Final answer
    x = 62,587.29

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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.