Home / 81,736.29-112,869.86-51,575.13

Finding the Fourth Proportional to 81,736.29, 112,869.86 and 51,575.13

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Solution

The fourth proportional to 81,736.29, 112,869.86 and 51,575.13 is: 71,220.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,736.29 : 112,869.86 = 51,575.13 : x
  2. Step 2: Convert to fraction form
    81,736.29/112,869.86 = 51,575.13/x
  3. Step 3: Cross multiply
    81,736.29x = 112,869.86 × 51,575.13
  4. Step 4: Simplify right side
    81,736.29x = 5,821,277,444.71
  5. Step 5: Solve for x
    x = 5,821,277,444.71/81,736.29
  6. Step 6: Final answer
    x = 71,220.23

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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.