Home / 86,560.74-129,499.49-65,561.29

Finding the Fourth Proportional to 86,560.74, 129,499.49 and 65,561.29

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Solution

The fourth proportional to 86,560.74, 129,499.49 and 65,561.29 is: 98,083.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,560.74 : 129,499.49 = 65,561.29 : x
  2. Step 2: Convert to fraction form
    86,560.74/129,499.49 = 65,561.29/x
  3. Step 3: Cross multiply
    86,560.74x = 129,499.49 × 65,561.29
  4. Step 4: Simplify right side
    86,560.74x = 8,490,153,458.90
  5. Step 5: Solve for x
    x = 8,490,153,458.90/86,560.74
  6. Step 6: Final answer
    x = 98,083.19

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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.