Home / 75,554.80-113,360.10-31,185.40

Finding the Fourth Proportional to 75,554.80, 113,360.10 and 31,185.40

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Solution

The fourth proportional to 75,554.80, 113,360.10 and 31,185.40 is: 46,789.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,554.80 : 113,360.10 = 31,185.40 : x
  2. Step 2: Convert to fraction form
    75,554.80/113,360.10 = 31,185.40/x
  3. Step 3: Cross multiply
    75,554.80x = 113,360.10 × 31,185.40
  4. Step 4: Simplify right side
    75,554.80x = 3,535,180,062.54
  5. Step 5: Solve for x
    x = 3,535,180,062.54/75,554.80
  6. Step 6: Final answer
    x = 46,789.62

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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.