Home / 81,319.33-112,225.62-45,508.60

Finding the Fourth Proportional to 81,319.33, 112,225.62 and 45,508.60

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Solution

The fourth proportional to 81,319.33, 112,225.62 and 45,508.60 is: 62,804.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,319.33 : 112,225.62 = 45,508.60 : x
  2. Step 2: Convert to fraction form
    81,319.33/112,225.62 = 45,508.60/x
  3. Step 3: Cross multiply
    81,319.33x = 112,225.62 × 45,508.60
  4. Step 4: Simplify right side
    81,319.33x = 5,107,230,850.33
  5. Step 5: Solve for x
    x = 5,107,230,850.33/81,319.33
  6. Step 6: Final answer
    x = 62,804.64

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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.