Home / 90,833.85-136,251.59-31,669.43

Finding the Fourth Proportional to 90,833.85, 136,251.59 and 31,669.43

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Solution

The fourth proportional to 90,833.85, 136,251.59 and 31,669.43 is: 47,504.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,833.85 : 136,251.59 = 31,669.43 : x
  2. Step 2: Convert to fraction form
    90,833.85/136,251.59 = 31,669.43/x
  3. Step 3: Cross multiply
    90,833.85x = 136,251.59 × 31,669.43
  4. Step 4: Simplify right side
    90,833.85x = 4,315,009,352.29
  5. Step 5: Solve for x
    x = 4,315,009,352.29/90,833.85
  6. Step 6: Final answer
    x = 47,504.42

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1.5x scale

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.