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Finding the Fourth Proportional to 86,559.73, 129,847.03 and 30,395.01

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Solution

The fourth proportional to 86,559.73, 129,847.03 and 30,395.01 is: 45,595.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,559.73 : 129,847.03 = 30,395.01 : x
  2. Step 2: Convert to fraction form
    86,559.73/129,847.03 = 30,395.01/x
  3. Step 3: Cross multiply
    86,559.73x = 129,847.03 × 30,395.01
  4. Step 4: Simplify right side
    86,559.73x = 3,946,701,699.33
  5. Step 5: Solve for x
    x = 3,946,701,699.33/86,559.73
  6. Step 6: Final answer
    x = 45,595.13

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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.