Home / 75,567.80-113,379.60-31,198.40

Finding the Fourth Proportional to 75,567.80, 113,379.60 and 31,198.40

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Solution

The fourth proportional to 75,567.80, 113,379.60 and 31,198.40 is: 46,809.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,567.80 : 113,379.60 = 31,198.40 : x
  2. Step 2: Convert to fraction form
    75,567.80/113,379.60 = 31,198.40/x
  3. Step 3: Cross multiply
    75,567.80x = 113,379.60 × 31,198.40
  4. Step 4: Simplify right side
    75,567.80x = 3,537,262,112.64
  5. Step 5: Solve for x
    x = 3,537,262,112.64/75,567.80
  6. Step 6: Final answer
    x = 46,809.12

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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.