Home / 75,431.88-113,104.46-31,089.24

Finding the Fourth Proportional to 75,431.88, 113,104.46 and 31,089.24

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Solution

The fourth proportional to 75,431.88, 113,104.46 and 31,089.24 is: 46,615.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,431.88 : 113,104.46 = 31,089.24 : x
  2. Step 2: Convert to fraction form
    75,431.88/113,104.46 = 31,089.24/x
  3. Step 3: Cross multiply
    75,431.88x = 113,104.46 × 31,089.24
  4. Step 4: Simplify right side
    75,431.88x = 3,516,331,702.01
  5. Step 5: Solve for x
    x = 3,516,331,702.01/75,431.88
  6. Step 6: Final answer
    x = 46,615.99

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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.