Home / 86,581.50-119,484.32-47,819.13

Finding the Fourth Proportional to 86,581.50, 119,484.32 and 47,819.13

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Solution

The fourth proportional to 86,581.50, 119,484.32 and 47,819.13 is: 65,991.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,581.50 : 119,484.32 = 47,819.13 : x
  2. Step 2: Convert to fraction form
    86,581.50/119,484.32 = 47,819.13/x
  3. Step 3: Cross multiply
    86,581.50x = 119,484.32 × 47,819.13
  4. Step 4: Simplify right side
    86,581.50x = 5,713,635,991.95
  5. Step 5: Solve for x
    x = 5,713,635,991.95/86,581.50
  6. Step 6: Final answer
    x = 65,991.42

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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.