Home / 81,747.84-112,779.36-51,525.12

Finding the Fourth Proportional to 81,747.84, 112,779.36 and 51,525.12

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Solution

The fourth proportional to 81,747.84, 112,779.36 and 51,525.12 is: 71,084.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,747.84 : 112,779.36 = 51,525.12 : x
  2. Step 2: Convert to fraction form
    81,747.84/112,779.36 = 51,525.12/x
  3. Step 3: Cross multiply
    81,747.84x = 112,779.36 × 51,525.12
  4. Step 4: Simplify right side
    81,747.84x = 5,810,970,057.52
  5. Step 5: Solve for x
    x = 5,810,970,057.52/81,747.84
  6. Step 6: Final answer
    x = 71,084.08

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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.