Home / 86,433.09-129,649.77-56,982.48

Finding the Fourth Proportional to 86,433.09, 129,649.77 and 56,982.48

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Solution

The fourth proportional to 86,433.09, 129,649.77 and 56,982.48 is: 85,473.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,433.09 : 129,649.77 = 56,982.48 : x
  2. Step 2: Convert to fraction form
    86,433.09/129,649.77 = 56,982.48/x
  3. Step 3: Cross multiply
    86,433.09x = 129,649.77 × 56,982.48
  4. Step 4: Simplify right side
    86,433.09x = 7,387,765,426.03
  5. Step 5: Solve for x
    x = 7,387,765,426.03/86,433.09
  6. Step 6: Final answer
    x = 85,473.81

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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.