Home / 87,319.54-130,985.07-31,954.42

Finding the Fourth Proportional to 87,319.54, 130,985.07 and 31,954.42

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Solution

The fourth proportional to 87,319.54, 130,985.07 and 31,954.42 is: 47,933.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,319.54 : 130,985.07 = 31,954.42 : x
  2. Step 2: Convert to fraction form
    87,319.54/130,985.07 = 31,954.42/x
  3. Step 3: Cross multiply
    87,319.54x = 130,985.07 × 31,954.42
  4. Step 4: Simplify right side
    87,319.54x = 4,185,551,940.51
  5. Step 5: Solve for x
    x = 4,185,551,940.51/87,319.54
  6. Step 6: Final answer
    x = 47,933.74

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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.