Home / 81,848.23-112,966.08-51,235.56

Finding the Fourth Proportional to 81,848.23, 112,966.08 and 51,235.56

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Solution

The fourth proportional to 81,848.23, 112,966.08 and 51,235.56 is: 70,714.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,848.23 : 112,966.08 = 51,235.56 : x
  2. Step 2: Convert to fraction form
    81,848.23/112,966.08 = 51,235.56/x
  3. Step 3: Cross multiply
    81,848.23x = 112,966.08 × 51,235.56
  4. Step 4: Simplify right side
    81,848.23x = 5,787,880,113.63
  5. Step 5: Solve for x
    x = 5,787,880,113.63/81,848.23
  6. Step 6: Final answer
    x = 70,714.79

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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.