Home / 86,085.77-129,054.69-29,918.58

Finding the Fourth Proportional to 86,085.77, 129,054.69 and 29,918.58

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Solution

The fourth proportional to 86,085.77, 129,054.69 and 29,918.58 is: 44,852.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,085.77 : 129,054.69 = 29,918.58 : x
  2. Step 2: Convert to fraction form
    86,085.77/129,054.69 = 29,918.58/x
  3. Step 3: Cross multiply
    86,085.77x = 129,054.69 × 29,918.58
  4. Step 4: Simplify right side
    86,085.77x = 3,861,132,819.30
  5. Step 5: Solve for x
    x = 3,861,132,819.30/86,085.77
  6. Step 6: Final answer
    x = 44,852.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.