Home / 259,032.31-388,570.34-72,043.81

Finding the Fourth Proportional to 259,032.31, 388,570.34 and 72,043.81

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Solution

The fourth proportional to 259,032.31, 388,570.34 and 72,043.81 is: 108,071.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,032.31 : 388,570.34 = 72,043.81 : x
  2. Step 2: Convert to fraction form
    259,032.31/388,570.34 = 72,043.81/x
  3. Step 3: Cross multiply
    259,032.31x = 388,570.34 × 72,043.81
  4. Step 4: Simplify right side
    259,032.31x = 27,994,088,627.97
  5. Step 5: Solve for x
    x = 27,994,088,627.97/259,032.31
  6. Step 6: Final answer
    x = 108,071.80

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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.