Home / 81,283.20-112,181.25-45,475.17

Finding the Fourth Proportional to 81,283.20, 112,181.25 and 45,475.17

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Solution

The fourth proportional to 81,283.20, 112,181.25 and 45,475.17 is: 62,761.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,283.20 : 112,181.25 = 45,475.17 : x
  2. Step 2: Convert to fraction form
    81,283.20/112,181.25 = 45,475.17/x
  3. Step 3: Cross multiply
    81,283.20x = 112,181.25 × 45,475.17
  4. Step 4: Simplify right side
    81,283.20x = 5,101,461,795.43
  5. Step 5: Solve for x
    x = 5,101,461,795.43/81,283.20
  6. Step 6: Final answer
    x = 62,761.58

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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.