Home / 75,915.23-113,942.26-38,501.12

Finding the Fourth Proportional to 75,915.23, 113,942.26 and 38,501.12

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Solution

The fourth proportional to 75,915.23, 113,942.26 and 38,501.12 is: 57,786.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,915.23 : 113,942.26 = 38,501.12 : x
  2. Step 2: Convert to fraction form
    75,915.23/113,942.26 = 38,501.12/x
  3. Step 3: Cross multiply
    75,915.23x = 113,942.26 × 38,501.12
  4. Step 4: Simplify right side
    75,915.23x = 4,386,904,958.31
  5. Step 5: Solve for x
    x = 4,386,904,958.31/75,915.23
  6. Step 6: Final answer
    x = 57,786.89

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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.