Home / 81,583.56-112,587.30-45,774.54

Finding the Fourth Proportional to 81,583.56, 112,587.30 and 45,774.54

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Solution

The fourth proportional to 81,583.56, 112,587.30 and 45,774.54 is: 63,169.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,583.56 : 112,587.30 = 45,774.54 : x
  2. Step 2: Convert to fraction form
    81,583.56/112,587.30 = 45,774.54/x
  3. Step 3: Cross multiply
    81,583.56x = 112,587.30 × 45,774.54
  4. Step 4: Simplify right side
    81,583.56x = 5,153,631,867.34
  5. Step 5: Solve for x
    x = 5,153,631,867.34/81,583.56
  6. Step 6: Final answer
    x = 63,169.98

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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.