Home / 81,716.04-112,841.91-51,554.88

Finding the Fourth Proportional to 81,716.04, 112,841.91 and 51,554.88

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Solution

The fourth proportional to 81,716.04, 112,841.91 and 51,554.88 is: 71,192.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,716.04 : 112,841.91 = 51,554.88 : x
  2. Step 2: Convert to fraction form
    81,716.04/112,841.91 = 51,554.88/x
  3. Step 3: Cross multiply
    81,716.04x = 112,841.91 × 51,554.88
  4. Step 4: Simplify right side
    81,716.04x = 5,817,551,129.02
  5. Step 5: Solve for x
    x = 5,817,551,129.02/81,716.04
  6. Step 6: Final answer
    x = 71,192.28

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1.5x scale

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.