Home / 81,126.56-111,954.72-45,316.52

Finding the Fourth Proportional to 81,126.56, 111,954.72 and 45,316.52

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Solution

The fourth proportional to 81,126.56, 111,954.72 and 45,316.52 is: 62,536.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,126.56 : 111,954.72 = 45,316.52 : x
  2. Step 2: Convert to fraction form
    81,126.56/111,954.72 = 45,316.52/x
  3. Step 3: Cross multiply
    81,126.56x = 111,954.72 × 45,316.52
  4. Step 4: Simplify right side
    81,126.56x = 5,073,398,307.97
  5. Step 5: Solve for x
    x = 5,073,398,307.97/81,126.56
  6. Step 6: Final answer
    x = 62,536.84

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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.