Home / 86,455.68-129,652.29-36,539.64

Finding the Fourth Proportional to 86,455.68, 129,652.29 and 36,539.64

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Solution

The fourth proportional to 86,455.68, 129,652.29 and 36,539.64 is: 54,796.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,455.68 : 129,652.29 = 36,539.64 : x
  2. Step 2: Convert to fraction form
    86,455.68/129,652.29 = 36,539.64/x
  3. Step 3: Cross multiply
    86,455.68x = 129,652.29 × 36,539.64
  4. Step 4: Simplify right side
    86,455.68x = 4,737,448,001.78
  5. Step 5: Solve for x
    x = 4,737,448,001.78/86,455.68
  6. Step 6: Final answer
    x = 54,796.26

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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.