Home / 86,056.31-129,004.21-29,090.58

Finding the Fourth Proportional to 86,056.31, 129,004.21 and 29,090.58

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Solution

The fourth proportional to 86,056.31, 129,004.21 and 29,090.58 is: 43,608.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,056.31 : 129,004.21 = 29,090.58 : x
  2. Step 2: Convert to fraction form
    86,056.31/129,004.21 = 29,090.58/x
  3. Step 3: Cross multiply
    86,056.31x = 129,004.21 × 29,090.58
  4. Step 4: Simplify right side
    86,056.31x = 3,752,807,291.34
  5. Step 5: Solve for x
    x = 3,752,807,291.34/86,056.31
  6. Step 6: Final answer
    x = 43,608.74

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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.