Home / 86,173.50-129,381.36-44,083.78

Finding the Fourth Proportional to 86,173.50, 129,381.36 and 44,083.78

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Solution

The fourth proportional to 86,173.50, 129,381.36 and 44,083.78 is: 66,187.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,173.50 : 129,381.36 = 44,083.78 : x
  2. Step 2: Convert to fraction form
    86,173.50/129,381.36 = 44,083.78/x
  3. Step 3: Cross multiply
    86,173.50x = 129,381.36 × 44,083.78
  4. Step 4: Simplify right side
    86,173.50x = 5,703,618,543.02
  5. Step 5: Solve for x
    x = 5,703,618,543.02/86,173.50
  6. Step 6: Final answer
    x = 66,187.62

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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.