Home / 75,549.80-113,352.60-31,180.40

Finding the Fourth Proportional to 75,549.80, 113,352.60 and 31,180.40

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Solution

The fourth proportional to 75,549.80, 113,352.60 and 31,180.40 is: 46,782.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,549.80 : 113,352.60 = 31,180.40 : x
  2. Step 2: Convert to fraction form
    75,549.80/113,352.60 = 31,180.40/x
  3. Step 3: Cross multiply
    75,549.80x = 113,352.60 × 31,180.40
  4. Step 4: Simplify right side
    75,549.80x = 3,534,379,409.04
  5. Step 5: Solve for x
    x = 3,534,379,409.04/75,549.80
  6. Step 6: Final answer
    x = 46,782.11

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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.