Home / 54,009.60-81,062.40-31,795.20

Finding the Fourth Proportional to 54,009.60, 81,062.40 and 31,795.20

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Solution

The fourth proportional to 54,009.60, 81,062.40 and 31,795.20 is: 47,721.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,009.60 : 81,062.40 = 31,795.20 : x
  2. Step 2: Convert to fraction form
    54,009.60/81,062.40 = 31,795.20/x
  3. Step 3: Cross multiply
    54,009.60x = 81,062.40 × 31,795.20
  4. Step 4: Simplify right side
    54,009.60x = 2,577,395,220.48
  5. Step 5: Solve for x
    x = 2,577,395,220.48/54,009.60
  6. Step 6: Final answer
    x = 47,721.06

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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.