Home / 86,088.96-129,172.37-43,947.29

Finding the Fourth Proportional to 86,088.96, 129,172.37 and 43,947.29

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Solution

The fourth proportional to 86,088.96, 129,172.37 and 43,947.29 is: 65,940.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,088.96 : 129,172.37 = 43,947.29 : x
  2. Step 2: Convert to fraction form
    86,088.96/129,172.37 = 43,947.29/x
  3. Step 3: Cross multiply
    86,088.96x = 129,172.37 × 43,947.29
  4. Step 4: Simplify right side
    86,088.96x = 5,676,775,707.57
  5. Step 5: Solve for x
    x = 5,676,775,707.57/86,088.96
  6. Step 6: Final answer
    x = 65,940.81

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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.