Home / 67,145.10-100,717.63-31,584.30

Finding the Fourth Proportional to 67,145.10, 100,717.63 and 31,584.30

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Solution

The fourth proportional to 67,145.10, 100,717.63 and 31,584.30 is: 47,376.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,145.10 : 100,717.63 = 31,584.30 : x
  2. Step 2: Convert to fraction form
    67,145.10/100,717.63 = 31,584.30/x
  3. Step 3: Cross multiply
    67,145.10x = 100,717.63 × 31,584.30
  4. Step 4: Simplify right side
    67,145.10x = 3,181,095,841.21
  5. Step 5: Solve for x
    x = 3,181,095,841.21/67,145.10
  6. Step 6: Final answer
    x = 47,376.44

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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.